91621120

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2309}}^1$

素因数の和:2361

約数の個数: 72

約数和(自身を含む): 226638720

約数和(自身を除く): 135017600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2309, 2480, 3968, 4618, 4960, 7936, 9236, 9920, 11545, 18472, 19840, 23090, 36944, 39680, 46180, 71579, 73888, 92360, 143158, 147776, 184720, 286316, 295552, 357895, 369440, 572632, 591104, 715790, 738880, 1145264, 1431580, 1477760, 2290528, 2863160, 2955520, 4581056, 5726320, 9162112, 11452640, 18324224, 22905280, 45810560, 91621120]

約数ペア:

[(1, 91621120), (2, 45810560), (4, 22905280), (5, 18324224), (8, 11452640), (10, 9162112), (16, 5726320), (20, 4581056), (31, 2955520), (32, 2863160), (40, 2290528), (62, 1477760), (64, 1431580), (80, 1145264), (124, 738880), (128, 715790), (155, 591104), (160, 572632), (248, 369440), (256, 357895), (310, 295552), (320, 286316), (496, 184720), (620, 147776), (640, 143158), (992, 92360), (1240, 73888), (1280, 71579), (1984, 46180), (2309, 39680), (2480, 36944), (3968, 23090), (4618, 19840), (4960, 18472), (7936, 11545), (9236, 9920)]