199904580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{3571}}^1$

素因数の和:3897

約数の個数: 72

約数和(自身を含む): 608497344

約数和(自身を除く): 408592764

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 311, 622, 933, 1244, 1555, 1866, 2799, 3110, 3571, 3732, 4665, 5598, 6220, 7142, 9330, 10713, 11196, 13995, 14284, 17855, 18660, 21426, 27990, 32139, 35710, 42852, 53565, 55980, 64278, 71420, 107130, 128556, 160695, 214260, 321390, 642780, 1110581, 2221162, 3331743, 4442324, 5552905, 6663486, 9995229, 11105810, 13326972, 16658715, 19990458, 22211620, 33317430, 39980916, 49976145, 66634860, 99952290, 199904580]

約数ペア:

[(1, 199904580), (2, 99952290), (3, 66634860), (4, 49976145), (5, 39980916), (6, 33317430), (9, 22211620), (10, 19990458), (12, 16658715), (15, 13326972), (18, 11105810), (20, 9995229), (30, 6663486), (36, 5552905), (45, 4442324), (60, 3331743), (90, 2221162), (180, 1110581), (311, 642780), (622, 321390), (933, 214260), (1244, 160695), (1555, 128556), (1866, 107130), (2799, 71420), (3110, 64278), (3571, 55980), (3732, 53565), (4665, 42852), (5598, 35710), (6220, 32139), (7142, 27990), (9330, 21426), (10713, 18660), (11196, 17855), (13995, 14284)]