1641900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{421}}^1$

素因数の和:451

約数の個数: 72

約数和(自身を含む): 5128144

約数和(自身を除く): 3486244

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 421, 650, 780, 842, 975, 1263, 1300, 1684, 1950, 2105, 2526, 3900, 4210, 5052, 5473, 6315, 8420, 10525, 10946, 12630, 16419, 21050, 21892, 25260, 27365, 31575, 32838, 42100, 54730, 63150, 65676, 82095, 109460, 126300, 136825, 164190, 273650, 328380, 410475, 547300, 820950, 1641900]

約数ペア:

[(1, 1641900), (2, 820950), (3, 547300), (4, 410475), (5, 328380), (6, 273650), (10, 164190), (12, 136825), (13, 126300), (15, 109460), (20, 82095), (25, 65676), (26, 63150), (30, 54730), (39, 42100), (50, 32838), (52, 31575), (60, 27365), (65, 25260), (75, 21892), (78, 21050), (100, 16419), (130, 12630), (150, 10946), (156, 10525), (195, 8420), (260, 6315), (300, 5473), (325, 5052), (390, 4210), (421, 3900), (650, 2526), (780, 2105), (842, 1950), (975, 1684), (1263, 1300)]