101720840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{983}}^1$

素因数の和:1206

約数の個数: 64

約数和(自身を含む): 247968000

約数和(自身を除く): 146247160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 199, 260, 398, 520, 796, 983, 995, 1592, 1966, 1990, 2587, 3932, 3980, 4915, 5174, 7864, 7960, 9830, 10348, 12779, 12935, 19660, 20696, 25558, 25870, 39320, 51116, 51740, 63895, 102232, 103480, 127790, 195617, 255580, 391234, 511160, 782468, 978085, 1564936, 1956170, 2543021, 3912340, 5086042, 7824680, 10172084, 12715105, 20344168, 25430210, 50860420, 101720840]

約数ペア:

[(1, 101720840), (2, 50860420), (4, 25430210), (5, 20344168), (8, 12715105), (10, 10172084), (13, 7824680), (20, 5086042), (26, 3912340), (40, 2543021), (52, 1956170), (65, 1564936), (104, 978085), (130, 782468), (199, 511160), (260, 391234), (398, 255580), (520, 195617), (796, 127790), (983, 103480), (995, 102232), (1592, 63895), (1966, 51740), (1990, 51116), (2587, 39320), (3932, 25870), (3980, 25558), (4915, 20696), (5174, 19660), (7864, 12935), (7960, 12779), (9830, 10348)]