638996930

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{2999}}^1$

素因数の和:3179

約数の個数: 64

約数和(自身を含む): 1360800000

約数和(自身を除く): 721803070

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 149, 286, 298, 715, 745, 1430, 1490, 1639, 1937, 2999, 3278, 3874, 5998, 8195, 9685, 14995, 16390, 19370, 21307, 29990, 32989, 38987, 42614, 65978, 77974, 106535, 164945, 194935, 213070, 329890, 389870, 428857, 446851, 857714, 893702, 2144285, 2234255, 4288570, 4468510, 4915361, 5809063, 9830722, 11618126, 24576805, 29045315, 49153610, 58090630, 63899693, 127799386, 319498465, 638996930]

約数ペア:

[(1, 638996930), (2, 319498465), (5, 127799386), (10, 63899693), (11, 58090630), (13, 49153610), (22, 29045315), (26, 24576805), (55, 11618126), (65, 9830722), (110, 5809063), (130, 4915361), (143, 4468510), (149, 4288570), (286, 2234255), (298, 2144285), (715, 893702), (745, 857714), (1430, 446851), (1490, 428857), (1639, 389870), (1937, 329890), (2999, 213070), (3278, 194935), (3874, 164945), (5998, 106535), (8195, 77974), (9685, 65978), (14995, 42614), (16390, 38987), (19370, 32989), (21307, 29990)]