55315280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{457}}^1$

素因数の和:576

約数の個数: 80

約数和(自身を含む): 138004560

約数和(自身を除く): 82689280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 89, 136, 170, 178, 272, 340, 356, 445, 457, 680, 712, 890, 914, 1360, 1424, 1513, 1780, 1828, 2285, 3026, 3560, 3656, 4570, 6052, 7120, 7312, 7565, 7769, 9140, 12104, 15130, 15538, 18280, 24208, 30260, 31076, 36560, 38845, 40673, 60520, 62152, 77690, 81346, 121040, 124304, 155380, 162692, 203365, 310760, 325384, 406730, 621520, 650768, 691441, 813460, 1382882, 1626920, 2765764, 3253840, 3457205, 5531528, 6914410, 11063056, 13828820, 27657640, 55315280]

約数ペア:

[(1, 55315280), (2, 27657640), (4, 13828820), (5, 11063056), (8, 6914410), (10, 5531528), (16, 3457205), (17, 3253840), (20, 2765764), (34, 1626920), (40, 1382882), (68, 813460), (80, 691441), (85, 650768), (89, 621520), (136, 406730), (170, 325384), (178, 310760), (272, 203365), (340, 162692), (356, 155380), (445, 124304), (457, 121040), (680, 81346), (712, 77690), (890, 62152), (914, 60520), (1360, 40673), (1424, 38845), (1513, 36560), (1780, 31076), (1828, 30260), (2285, 24208), (3026, 18280), (3560, 15538), (3656, 15130), (4570, 12104), (6052, 9140), (7120, 7769), (7312, 7565)]