20637760

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1$

素因数の和:93

約数の個数: 168

約数和(自身を含む): 59591448

約数和(自身を除く): 38953688

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 41, 44, 52, 55, 64, 65, 80, 82, 88, 104, 110, 121, 130, 143, 160, 164, 176, 205, 208, 220, 242, 260, 286, 320, 328, 352, 410, 416, 440, 451, 484, 520, 533, 572, 605, 656, 704, 715, 820, 832, 880, 902, 968, 1040, 1066, 1144, 1210, 1312, 1430, 1573, 1640, 1760, 1804, 1936, 2080, 2132, 2255, 2288, 2420, 2624, 2665, 2860, 3146, 3280, 3520, 3608, 3872, 4160, 4264, 4510, 4576, 4840, 4961, 5330, 5720, 5863, 6292, 6560, 7216, 7744, 7865, 8528, 9020, 9152, 9680, 9922, 10660, 11440, 11726, 12584, 13120, 14432, 15730, 17056, 18040, 19360, 19844, 21320, 22880, 23452, 24805, 25168, 28864, 29315, 31460, 34112, 36080, 38720, 39688, 42640, 45760, 46904, 49610, 50336, 58630, 62920, 64493, 72160, 79376, 85280, 93808, 99220, 100672, 117260, 125840, 128986, 144320, 158752, 170560, 187616, 198440, 234520, 251680, 257972, 317504, 322465, 375232, 396880, 469040, 503360, 515944, 644930, 793760, 938080, 1031888, 1289860, 1587520, 1876160, 2063776, 2579720, 4127552, 5159440, 10318880, 20637760]

約数ペア:

[(1, 20637760), (2, 10318880), (4, 5159440), (5, 4127552), (8, 2579720), (10, 2063776), (11, 1876160), (13, 1587520), (16, 1289860), (20, 1031888), (22, 938080), (26, 793760), (32, 644930), (40, 515944), (41, 503360), (44, 469040), (52, 396880), (55, 375232), (64, 322465), (65, 317504), (80, 257972), (82, 251680), (88, 234520), (104, 198440), (110, 187616), (121, 170560), (130, 158752), (143, 144320), (160, 128986), (164, 125840), (176, 117260), (205, 100672), (208, 99220), (220, 93808), (242, 85280), (260, 79376), (286, 72160), (320, 64493), (328, 62920), (352, 58630), (410, 50336), (416, 49610), (440, 46904), (451, 45760), (484, 42640), (520, 39688), (533, 38720), (572, 36080), (605, 34112), (656, 31460), (704, 29315), (715, 28864), (820, 25168), (832, 24805), (880, 23452), (902, 22880), (968, 21320), (1040, 19844), (1066, 19360), (1144, 18040), (1210, 17056), (1312, 15730), (1430, 14432), (1573, 13120), (1640, 12584), (1760, 11726), (1804, 11440), (1936, 10660), (2080, 9922), (2132, 9680), (2255, 9152), (2288, 9020), (2420, 8528), (2624, 7865), (2665, 7744), (2860, 7216), (3146, 6560), (3280, 6292), (3520, 5863), (3608, 5720), (3872, 5330), (4160, 4961), (4264, 4840), (4510, 4576)]