77757520

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:332

約数の個数: 80

約数和(自身を含む): 186684480

約数和(自身を除く): 108926960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 89, 134, 163, 178, 268, 326, 335, 356, 445, 536, 652, 670, 712, 815, 890, 1072, 1304, 1340, 1424, 1630, 1780, 2608, 2680, 3260, 3560, 5360, 5963, 6520, 7120, 10921, 11926, 13040, 14507, 21842, 23852, 29014, 29815, 43684, 47704, 54605, 58028, 59630, 72535, 87368, 95408, 109210, 116056, 119260, 145070, 174736, 218420, 232112, 238520, 290140, 436840, 477040, 580280, 873680, 971969, 1160560, 1943938, 3887876, 4859845, 7775752, 9719690, 15551504, 19439380, 38878760, 77757520]

約数ペア:

[(1, 77757520), (2, 38878760), (4, 19439380), (5, 15551504), (8, 9719690), (10, 7775752), (16, 4859845), (20, 3887876), (40, 1943938), (67, 1160560), (80, 971969), (89, 873680), (134, 580280), (163, 477040), (178, 436840), (268, 290140), (326, 238520), (335, 232112), (356, 218420), (445, 174736), (536, 145070), (652, 119260), (670, 116056), (712, 109210), (815, 95408), (890, 87368), (1072, 72535), (1304, 59630), (1340, 58028), (1424, 54605), (1630, 47704), (1780, 43684), (2608, 29815), (2680, 29014), (3260, 23852), (3560, 21842), (5360, 14507), (5963, 13040), (6520, 11926), (7120, 10921)]