664403320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{397}}^1$

素因数の和:597

約数の個数: 128

約数和(自身を含む): 1765209600

約数和(自身を除く): 1100806280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 139, 140, 172, 215, 278, 280, 301, 344, 397, 430, 556, 602, 695, 794, 860, 973, 1112, 1204, 1390, 1505, 1588, 1720, 1946, 1985, 2408, 2779, 2780, 3010, 3176, 3892, 3970, 4865, 5558, 5560, 5977, 6020, 7784, 7940, 9730, 11116, 11954, 12040, 13895, 15880, 17071, 19460, 22232, 23908, 27790, 29885, 34142, 38920, 41839, 47816, 55183, 55580, 59770, 68284, 83678, 85355, 110366, 111160, 119497, 119540, 136568, 167356, 170710, 209195, 220732, 238994, 239080, 275915, 334712, 341420, 386281, 418390, 441464, 477988, 551830, 597485, 682840, 772562, 836780, 955976, 1103660, 1194970, 1545124, 1673560, 1931405, 2207320, 2372869, 2389940, 3090248, 3862810, 4745738, 4779880, 7725620, 9491476, 11864345, 15451240, 16610083, 18982952, 23728690, 33220166, 47457380, 66440332, 83050415, 94914760, 132880664, 166100830, 332201660, 664403320]

約数ペア:

[(1, 664403320), (2, 332201660), (4, 166100830), (5, 132880664), (7, 94914760), (8, 83050415), (10, 66440332), (14, 47457380), (20, 33220166), (28, 23728690), (35, 18982952), (40, 16610083), (43, 15451240), (56, 11864345), (70, 9491476), (86, 7725620), (139, 4779880), (140, 4745738), (172, 3862810), (215, 3090248), (278, 2389940), (280, 2372869), (301, 2207320), (344, 1931405), (397, 1673560), (430, 1545124), (556, 1194970), (602, 1103660), (695, 955976), (794, 836780), (860, 772562), (973, 682840), (1112, 597485), (1204, 551830), (1390, 477988), (1505, 441464), (1588, 418390), (1720, 386281), (1946, 341420), (1985, 334712), (2408, 275915), (2779, 239080), (2780, 238994), (3010, 220732), (3176, 209195), (3892, 170710), (3970, 167356), (4865, 136568), (5558, 119540), (5560, 119497), (5977, 111160), (6020, 110366), (7784, 85355), (7940, 83678), (9730, 68284), (11116, 59770), (11954, 55580), (12040, 55183), (13895, 47816), (15880, 41839), (17071, 38920), (19460, 34142), (22232, 29885), (23908, 27790)]