20177160920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{503}}^1\times {\mathrm{143263}}^1$

素因数の和:143784

約数の個数: 64

約数和(自身を含む): 51987640320

約数和(自身を除く): 31810479400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 503, 1006, 2012, 2515, 3521, 4024, 5030, 7042, 10060, 14084, 17605, 20120, 28168, 35210, 70420, 140840, 143263, 286526, 573052, 716315, 1002841, 1146104, 1432630, 2005682, 2865260, 4011364, 5014205, 5730520, 8022728, 10028410, 20056820, 40113640, 72061289, 144122578, 288245156, 360306445, 504429023, 576490312, 720612890, 1008858046, 1441225780, 2017716092, 2522145115, 2882451560, 4035432184, 5044290230, 10088580460, 20177160920]

約数ペア:

[(1, 20177160920), (2, 10088580460), (4, 5044290230), (5, 4035432184), (7, 2882451560), (8, 2522145115), (10, 2017716092), (14, 1441225780), (20, 1008858046), (28, 720612890), (35, 576490312), (40, 504429023), (56, 360306445), (70, 288245156), (140, 144122578), (280, 72061289), (503, 40113640), (1006, 20056820), (2012, 10028410), (2515, 8022728), (3521, 5730520), (4024, 5014205), (5030, 4011364), (7042, 2865260), (10060, 2005682), (14084, 1432630), (17605, 1146104), (20120, 1002841), (28168, 716315), (35210, 573052), (70420, 286526), (140840, 143263)]