20256020820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{653}}^1\times {\mathrm{3517}}^1$

素因数の和:4199

約数の個数: 216

約数和(自身を含む): 71604626184

約数和(自身を除く): 51348605364

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 653, 735, 882, 980, 1260, 1306, 1470, 1764, 1959, 2205, 2612, 2940, 3265, 3517, 3918, 4410, 4571, 5877, 6530, 7034, 7836, 8820, 9142, 9795, 10551, 11754, 13060, 13713, 14068, 17585, 18284, 19590, 21102, 22855, 23508, 24619, 27426, 29385, 31653, 31997, 35170, 39180, 41139, 42204, 45710, 49238, 52755, 54852, 58770, 63306, 63994, 68565, 70340, 73857, 82278, 91420, 95991, 98476, 105510, 117540, 123095, 126612, 127988, 137130, 147714, 158265, 159985, 164556, 172333, 191982, 205695, 211020, 221571, 246190, 274260, 287973, 295428, 316530, 319970, 344666, 369285, 383964, 411390, 443142, 479955, 492380, 516999, 575946, 633060, 639940, 689332, 738570, 822780, 861665, 886284, 959910, 1033998, 1107855, 1151892, 1439865, 1477140, 1550997, 1723330, 1919820, 2067996, 2215710, 2296601, 2584995, 2879730, 3101994, 3446660, 4431420, 4593202, 5169990, 5759460, 6203988, 6889803, 7754985, 9186404, 10339980, 11483005, 13779606, 15509970, 16076207, 20669409, 22966010, 27559212, 31019940, 32152414, 34449015, 41338818, 45932020, 48228621, 64304828, 68898030, 80381035, 82677636, 96457242, 103347045, 112533449, 137796060, 144685863, 160762070, 192914484, 206694090, 225066898, 241143105, 289371726, 321524140, 337600347, 413388180, 450133796, 482286210, 562667245, 578743452, 675200694, 723429315, 964572420, 1012801041, 1125334490, 1350401388, 1446858630, 1688001735, 2025602082, 2250668980, 2893717260, 3376003470, 4051204164, 5064005205, 6752006940, 10128010410, 20256020820]

約数ペア:

[(1, 20256020820), (2, 10128010410), (3, 6752006940), (4, 5064005205), (5, 4051204164), (6, 3376003470), (7, 2893717260), (9, 2250668980), (10, 2025602082), (12, 1688001735), (14, 1446858630), (15, 1350401388), (18, 1125334490), (20, 1012801041), (21, 964572420), (28, 723429315), (30, 675200694), (35, 578743452), (36, 562667245), (42, 482286210), (45, 450133796), (49, 413388180), (60, 337600347), (63, 321524140), (70, 289371726), (84, 241143105), (90, 225066898), (98, 206694090), (105, 192914484), (126, 160762070), (140, 144685863), (147, 137796060), (180, 112533449), (196, 103347045), (210, 96457242), (245, 82677636), (252, 80381035), (294, 68898030), (315, 64304828), (420, 48228621), (441, 45932020), (490, 41338818), (588, 34449015), (630, 32152414), (653, 31019940), (735, 27559212), (882, 22966010), (980, 20669409), (1260, 16076207), (1306, 15509970), (1470, 13779606), (1764, 11483005), (1959, 10339980), (2205, 9186404), (2612, 7754985), (2940, 6889803), (3265, 6203988), (3517, 5759460), (3918, 5169990), (4410, 4593202), (4571, 4431420), (5877, 3446660), (6530, 3101994), (7034, 2879730), (7836, 2584995), (8820, 2296601), (9142, 2215710), (9795, 2067996), (10551, 1919820), (11754, 1723330), (13060, 1550997), (13713, 1477140), (14068, 1439865), (17585, 1151892), (18284, 1107855), (19590, 1033998), (21102, 959910), (22855, 886284), (23508, 861665), (24619, 822780), (27426, 738570), (29385, 689332), (31653, 639940), (31997, 633060), (35170, 575946), (39180, 516999), (41139, 492380), (42204, 479955), (45710, 443142), (49238, 411390), (52755, 383964), (54852, 369285), (58770, 344666), (63306, 319970), (63994, 316530), (68565, 295428), (70340, 287973), (73857, 274260), (82278, 246190), (91420, 221571), (95991, 211020), (98476, 205695), (105510, 191982), (117540, 172333), (123095, 164556), (126612, 159985), (127988, 158265), (137130, 147714)]