890240820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{15937}}^1$

素因数の和:15982

約数の個数: 144

約数和(自身を含む): 3052445760

約数和(自身を除く): 2162204940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 49, 57, 60, 70, 76, 84, 95, 98, 105, 114, 133, 140, 147, 190, 196, 210, 228, 245, 266, 285, 294, 380, 399, 420, 490, 532, 570, 588, 665, 735, 798, 931, 980, 1140, 1330, 1470, 1596, 1862, 1995, 2660, 2793, 2940, 3724, 3990, 4655, 5586, 7980, 9310, 11172, 13965, 15937, 18620, 27930, 31874, 47811, 55860, 63748, 79685, 95622, 111559, 159370, 191244, 223118, 239055, 302803, 318740, 334677, 446236, 478110, 557795, 605606, 669354, 780913, 908409, 956220, 1115590, 1211212, 1338708, 1514015, 1561826, 1673385, 1816818, 2119621, 2231180, 2342739, 3028030, 3123652, 3346770, 3633636, 3904565, 4239242, 4542045, 4685478, 6056060, 6358863, 6693540, 7809130, 8478484, 9084090, 9370956, 10598105, 11713695, 12717726, 14837347, 15618260, 18168180, 21196210, 23427390, 25435452, 29674694, 31794315, 42392420, 44512041, 46854780, 59349388, 63588630, 74186735, 89024082, 127177260, 148373470, 178048164, 222560205, 296746940, 445120410, 890240820]

約数ペア:

[(1, 890240820), (2, 445120410), (3, 296746940), (4, 222560205), (5, 178048164), (6, 148373470), (7, 127177260), (10, 89024082), (12, 74186735), (14, 63588630), (15, 59349388), (19, 46854780), (20, 44512041), (21, 42392420), (28, 31794315), (30, 29674694), (35, 25435452), (38, 23427390), (42, 21196210), (49, 18168180), (57, 15618260), (60, 14837347), (70, 12717726), (76, 11713695), (84, 10598105), (95, 9370956), (98, 9084090), (105, 8478484), (114, 7809130), (133, 6693540), (140, 6358863), (147, 6056060), (190, 4685478), (196, 4542045), (210, 4239242), (228, 3904565), (245, 3633636), (266, 3346770), (285, 3123652), (294, 3028030), (380, 2342739), (399, 2231180), (420, 2119621), (490, 1816818), (532, 1673385), (570, 1561826), (588, 1514015), (665, 1338708), (735, 1211212), (798, 1115590), (931, 956220), (980, 908409), (1140, 780913), (1330, 669354), (1470, 605606), (1596, 557795), (1862, 478110), (1995, 446236), (2660, 334677), (2793, 318740), (2940, 302803), (3724, 239055), (3990, 223118), (4655, 191244), (5586, 159370), (7980, 111559), (9310, 95622), (11172, 79685), (13965, 63748), (15937, 55860), (18620, 47811), (27930, 31874)]