90780400

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{7321}}^1$

素因数の和:7370

約数の個数: 60

約数和(自身を含む): 225166144

約数和(自身を除く): 134385744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 155, 200, 248, 310, 400, 496, 620, 775, 1240, 1550, 2480, 3100, 6200, 7321, 12400, 14642, 29284, 36605, 58568, 73210, 117136, 146420, 183025, 226951, 292840, 366050, 453902, 585680, 732100, 907804, 1134755, 1464200, 1815608, 2269510, 2928400, 3631216, 4539020, 5673775, 9078040, 11347550, 18156080, 22695100, 45390200, 90780400]

約数ペア:

[(1, 90780400), (2, 45390200), (4, 22695100), (5, 18156080), (8, 11347550), (10, 9078040), (16, 5673775), (20, 4539020), (25, 3631216), (31, 2928400), (40, 2269510), (50, 1815608), (62, 1464200), (80, 1134755), (100, 907804), (124, 732100), (155, 585680), (200, 453902), (248, 366050), (310, 292840), (400, 226951), (496, 183025), (620, 146420), (775, 117136), (1240, 73210), (1550, 58568), (2480, 36605), (3100, 29284), (6200, 14642), (7321, 12400)]