19353920

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1951}}^1$

素因数の和:1999

約数の個数: 56

約数和(自身を含む): 47597568

約数和(自身を除く): 28243648

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, 1951, 1984, 2480, 3902, 4960, 7804, 9755, 9920, 15608, 19510, 31216, 39020, 60481, 62432, 78040, 120962, 124864, 156080, 241924, 302405, 312160, 483848, 604810, 624320, 967696, 1209620, 1935392, 2419240, 3870784, 4838480, 9676960, 19353920]

約数ペア:

[(1, 19353920), (2, 9676960), (4, 4838480), (5, 3870784), (8, 2419240), (10, 1935392), (16, 1209620), (20, 967696), (31, 624320), (32, 604810), (40, 483848), (62, 312160), (64, 302405), (80, 241924), (124, 156080), (155, 124864), (160, 120962), (248, 78040), (310, 62432), (320, 60481), (496, 39020), (620, 31216), (992, 19510), (1240, 15608), (1951, 9920), (1984, 9755), (2480, 7804), (3902, 4960)]