400771360

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:327

約数の個数: 144

約数和(自身を含む): 1055351808

約数和(自身を除く): 654580448

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 121, 127, 160, 163, 176, 220, 242, 254, 326, 352, 440, 484, 508, 605, 635, 652, 815, 880, 968, 1016, 1210, 1270, 1304, 1397, 1630, 1760, 1793, 1936, 2032, 2420, 2540, 2608, 2794, 3260, 3586, 3872, 4064, 4840, 5080, 5216, 5588, 6520, 6985, 7172, 8965, 9680, 10160, 11176, 13040, 13970, 14344, 15367, 17930, 19360, 19723, 20320, 20701, 22352, 26080, 27940, 28688, 30734, 35860, 39446, 41402, 44704, 55880, 57376, 61468, 71720, 76835, 78892, 82804, 98615, 103505, 111760, 122936, 143440, 153670, 157784, 165608, 197230, 207010, 223520, 227711, 245872, 286880, 307340, 315568, 331216, 394460, 414020, 455422, 491744, 614680, 631136, 662432, 788920, 828040, 910844, 1138555, 1229360, 1577840, 1656080, 1821688, 2277110, 2458720, 2504821, 3155680, 3312160, 3643376, 4554220, 5009642, 7286752, 9108440, 10019284, 12524105, 18216880, 20038568, 25048210, 36433760, 40077136, 50096420, 80154272, 100192840, 200385680, 400771360]

約数ペア:

[(1, 400771360), (2, 200385680), (4, 100192840), (5, 80154272), (8, 50096420), (10, 40077136), (11, 36433760), (16, 25048210), (20, 20038568), (22, 18216880), (32, 12524105), (40, 10019284), (44, 9108440), (55, 7286752), (80, 5009642), (88, 4554220), (110, 3643376), (121, 3312160), (127, 3155680), (160, 2504821), (163, 2458720), (176, 2277110), (220, 1821688), (242, 1656080), (254, 1577840), (326, 1229360), (352, 1138555), (440, 910844), (484, 828040), (508, 788920), (605, 662432), (635, 631136), (652, 614680), (815, 491744), (880, 455422), (968, 414020), (1016, 394460), (1210, 331216), (1270, 315568), (1304, 307340), (1397, 286880), (1630, 245872), (1760, 227711), (1793, 223520), (1936, 207010), (2032, 197230), (2420, 165608), (2540, 157784), (2608, 153670), (2794, 143440), (3260, 122936), (3586, 111760), (3872, 103505), (4064, 98615), (4840, 82804), (5080, 78892), (5216, 76835), (5588, 71720), (6520, 61468), (6985, 57376), (7172, 55880), (8965, 44704), (9680, 41402), (10160, 39446), (11176, 35860), (13040, 30734), (13970, 28688), (14344, 27940), (15367, 26080), (17930, 22352), (19360, 20701), (19723, 20320)]