305153520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{181639}}^1$

素因数の和:181662

約数の個数: 80

約数和(自身を含む): 1081121280

約数和(自身を除く): 775967760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 181639, 363278, 544917, 726556, 908195, 1089834, 1271473, 1453112, 1816390, 2179668, 2542946, 2724585, 2906224, 3632780, 3814419, 4359336, 5085892, 5449170, 6357365, 7265560, 7628838, 8718672, 10171784, 10898340, 12714730, 14531120, 15257676, 19072095, 20343568, 21796680, 25429460, 30515352, 38144190, 43593360, 50858920, 61030704, 76288380, 101717840, 152576760, 305153520]

約数ペア:

[(1, 305153520), (2, 152576760), (3, 101717840), (4, 76288380), (5, 61030704), (6, 50858920), (7, 43593360), (8, 38144190), (10, 30515352), (12, 25429460), (14, 21796680), (15, 20343568), (16, 19072095), (20, 15257676), (21, 14531120), (24, 12714730), (28, 10898340), (30, 10171784), (35, 8718672), (40, 7628838), (42, 7265560), (48, 6357365), (56, 5449170), (60, 5085892), (70, 4359336), (80, 3814419), (84, 3632780), (105, 2906224), (112, 2724585), (120, 2542946), (140, 2179668), (168, 1816390), (210, 1453112), (240, 1271473), (280, 1089834), (336, 908195), (420, 726556), (560, 544917), (840, 363278), (1680, 181639)]