81557200

素因数分解:

$2^4\times 5^2\times {\mathrm{41}}^1\times {\mathrm{4973}}^1$

素因数の和:5032

約数の個数: 60

約数和(自身を含む): 200760588

約数和(自身を除く): 119203388

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 80, 82, 100, 164, 200, 205, 328, 400, 410, 656, 820, 1025, 1640, 2050, 3280, 4100, 4973, 8200, 9946, 16400, 19892, 24865, 39784, 49730, 79568, 99460, 124325, 198920, 203893, 248650, 397840, 407786, 497300, 815572, 994600, 1019465, 1631144, 1989200, 2038930, 3262288, 4077860, 5097325, 8155720, 10194650, 16311440, 20389300, 40778600, 81557200]

約数ペア:

[(1, 81557200), (2, 40778600), (4, 20389300), (5, 16311440), (8, 10194650), (10, 8155720), (16, 5097325), (20, 4077860), (25, 3262288), (40, 2038930), (41, 1989200), (50, 1631144), (80, 1019465), (82, 994600), (100, 815572), (164, 497300), (200, 407786), (205, 397840), (328, 248650), (400, 203893), (410, 198920), (656, 124325), (820, 99460), (1025, 79568), (1640, 49730), (2050, 39784), (3280, 24865), (4100, 19892), (4973, 16400), (8200, 9946)]