28702924340

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{113}}^2\times {\mathrm{1583}}^1$

素因数の和:1889

約数の個数: 72

約数和(自身を含む): 61709776128

約数和(自身を除く): 33006851788

約数列:

[1, 2, 4, 5, 10, 20, 71, 113, 142, 226, 284, 355, 452, 565, 710, 1130, 1420, 1583, 2260, 3166, 6332, 7915, 8023, 12769, 15830, 16046, 25538, 31660, 32092, 40115, 51076, 63845, 80230, 112393, 127690, 160460, 178879, 224786, 255380, 357758, 449572, 561965, 715516, 894395, 906599, 1123930, 1788790, 1813198, 2247860, 3577580, 3626396, 4532995, 9065990, 12700409, 18131980, 20213327, 25400818, 40426654, 50801636, 63502045, 80853308, 101066635, 127004090, 202133270, 254008180, 404266540, 1435146217, 2870292434, 5740584868, 7175731085, 14351462170, 28702924340]

約数ペア:

[(1, 28702924340), (2, 14351462170), (4, 7175731085), (5, 5740584868), (10, 2870292434), (20, 1435146217), (71, 404266540), (113, 254008180), (142, 202133270), (226, 127004090), (284, 101066635), (355, 80853308), (452, 63502045), (565, 50801636), (710, 40426654), (1130, 25400818), (1420, 20213327), (1583, 18131980), (2260, 12700409), (3166, 9065990), (6332, 4532995), (7915, 3626396), (8023, 3577580), (12769, 2247860), (15830, 1813198), (16046, 1788790), (25538, 1123930), (31660, 906599), (32092, 894395), (40115, 715516), (51076, 561965), (63845, 449572), (80230, 357758), (112393, 255380), (127690, 224786), (160460, 178879)]