399069320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{547}}^1$

素因数の和:655

約数の個数: 128

約数和(自身を含む): 1027434240

約数和(自身を除く): 628364920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 61, 65, 92, 104, 115, 122, 130, 184, 230, 244, 260, 299, 305, 460, 488, 520, 547, 598, 610, 793, 920, 1094, 1196, 1220, 1403, 1495, 1586, 2188, 2392, 2440, 2735, 2806, 2990, 3172, 3965, 4376, 5470, 5612, 5980, 6344, 7015, 7111, 7930, 10940, 11224, 11960, 12581, 14030, 14222, 15860, 18239, 21880, 25162, 28060, 28444, 31720, 33367, 35555, 36478, 50324, 56120, 56888, 62905, 66734, 71110, 72956, 91195, 100648, 125810, 133468, 142220, 145912, 163553, 166835, 182390, 251620, 266936, 284440, 327106, 333670, 364780, 433771, 503240, 654212, 667340, 729560, 767441, 817765, 867542, 1308424, 1334680, 1534882, 1635530, 1735084, 2168855, 3069764, 3271060, 3470168, 3837205, 4337710, 6139528, 6542120, 7674410, 8675420, 9976733, 15348820, 17350840, 19953466, 30697640, 39906932, 49883665, 79813864, 99767330, 199534660, 399069320]

約数ペア:

[(1, 399069320), (2, 199534660), (4, 99767330), (5, 79813864), (8, 49883665), (10, 39906932), (13, 30697640), (20, 19953466), (23, 17350840), (26, 15348820), (40, 9976733), (46, 8675420), (52, 7674410), (61, 6542120), (65, 6139528), (92, 4337710), (104, 3837205), (115, 3470168), (122, 3271060), (130, 3069764), (184, 2168855), (230, 1735084), (244, 1635530), (260, 1534882), (299, 1334680), (305, 1308424), (460, 867542), (488, 817765), (520, 767441), (547, 729560), (598, 667340), (610, 654212), (793, 503240), (920, 433771), (1094, 364780), (1196, 333670), (1220, 327106), (1403, 284440), (1495, 266936), (1586, 251620), (2188, 182390), (2392, 166835), (2440, 163553), (2735, 145912), (2806, 142220), (2990, 133468), (3172, 125810), (3965, 100648), (4376, 91195), (5470, 72956), (5612, 71110), (5980, 66734), (6344, 62905), (7015, 56888), (7111, 56120), (7930, 50324), (10940, 36478), (11224, 35555), (11960, 33367), (12581, 31720), (14030, 28444), (14222, 28060), (15860, 25162), (18239, 21880)]