639778880

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{1361}}^1$

素因数の和:1504

約数の個数: 112

約数和(自身を含む): 1656399024

約数和(自身を除く): 1016620144

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 113, 130, 160, 208, 226, 260, 320, 416, 452, 520, 565, 832, 904, 1040, 1130, 1361, 1469, 1808, 2080, 2260, 2722, 2938, 3616, 4160, 4520, 5444, 5876, 6805, 7232, 7345, 9040, 10888, 11752, 13610, 14690, 17693, 18080, 21776, 23504, 27220, 29380, 35386, 36160, 43552, 47008, 54440, 58760, 70772, 87104, 88465, 94016, 108880, 117520, 141544, 153793, 176930, 217760, 235040, 283088, 307586, 353860, 435520, 470080, 566176, 615172, 707720, 768965, 1132352, 1230344, 1415440, 1537930, 1999309, 2460688, 2830880, 3075860, 3998618, 4921376, 5661760, 6151720, 7997236, 9842752, 9996545, 12303440, 15994472, 19993090, 24606880, 31988944, 39986180, 49213760, 63977888, 79972360, 127955776, 159944720, 319889440, 639778880]

約数ペア:

[(1, 639778880), (2, 319889440), (4, 159944720), (5, 127955776), (8, 79972360), (10, 63977888), (13, 49213760), (16, 39986180), (20, 31988944), (26, 24606880), (32, 19993090), (40, 15994472), (52, 12303440), (64, 9996545), (65, 9842752), (80, 7997236), (104, 6151720), (113, 5661760), (130, 4921376), (160, 3998618), (208, 3075860), (226, 2830880), (260, 2460688), (320, 1999309), (416, 1537930), (452, 1415440), (520, 1230344), (565, 1132352), (832, 768965), (904, 707720), (1040, 615172), (1130, 566176), (1361, 470080), (1469, 435520), (1808, 353860), (2080, 307586), (2260, 283088), (2722, 235040), (2938, 217760), (3616, 176930), (4160, 153793), (4520, 141544), (5444, 117520), (5876, 108880), (6805, 94016), (7232, 88465), (7345, 87104), (9040, 70772), (10888, 58760), (11752, 54440), (13610, 47008), (14690, 43552), (17693, 36160), (18080, 35386), (21776, 29380), (23504, 27220)]