21453360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1259}}^1$

素因数の和:1346

約数の個数: 80

約数和(自身を含む): 67495680

約数和(自身を除く): 46042320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 71, 80, 120, 142, 213, 240, 284, 355, 426, 568, 710, 852, 1065, 1136, 1259, 1420, 1704, 2130, 2518, 2840, 3408, 3777, 4260, 5036, 5680, 6295, 7554, 8520, 10072, 12590, 15108, 17040, 18885, 20144, 25180, 30216, 37770, 50360, 60432, 75540, 89389, 100720, 151080, 178778, 268167, 302160, 357556, 446945, 536334, 715112, 893890, 1072668, 1340835, 1430224, 1787780, 2145336, 2681670, 3575560, 4290672, 5363340, 7151120, 10726680, 21453360]

約数ペア:

[(1, 21453360), (2, 10726680), (3, 7151120), (4, 5363340), (5, 4290672), (6, 3575560), (8, 2681670), (10, 2145336), (12, 1787780), (15, 1430224), (16, 1340835), (20, 1072668), (24, 893890), (30, 715112), (40, 536334), (48, 446945), (60, 357556), (71, 302160), (80, 268167), (120, 178778), (142, 151080), (213, 100720), (240, 89389), (284, 75540), (355, 60432), (426, 50360), (568, 37770), (710, 30216), (852, 25180), (1065, 20144), (1136, 18885), (1259, 17040), (1420, 15108), (1704, 12590), (2130, 10072), (2518, 8520), (2840, 7554), (3408, 6295), (3777, 5680), (4260, 5036)]