19211280320

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1936621}}^1$

素因数の和:1936669

約数の個数: 56

約数和(自身を含む): 47222590848

約数和(自身を除く): 28011310528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 1936621, 3873242, 7746484, 9683105, 15492968, 19366210, 30985936, 38732420, 60035251, 61971872, 77464840, 120070502, 123943744, 154929680, 240141004, 300176255, 309859360, 480282008, 600352510, 619718720, 960564016, 1200705020, 1921128032, 2401410040, 3842256064, 4802820080, 9605640160, 19211280320]

約数ペア:

[(1, 19211280320), (2, 9605640160), (4, 4802820080), (5, 3842256064), (8, 2401410040), (10, 1921128032), (16, 1200705020), (20, 960564016), (31, 619718720), (32, 600352510), (40, 480282008), (62, 309859360), (64, 300176255), (80, 240141004), (124, 154929680), (155, 123943744), (160, 120070502), (248, 77464840), (310, 61971872), (320, 60035251), (496, 38732420), (620, 30985936), (992, 19366210), (1240, 15492968), (1984, 9683105), (2480, 7746484), (4960, 3873242), (9920, 1936621)]