20778720

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{593}}^1$

素因数の和:684

約数の個数: 96

約数和(自身を含む): 66461472

約数和(自身を除く): 45682752

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 73, 80, 96, 120, 146, 160, 219, 240, 292, 365, 438, 480, 584, 593, 730, 876, 1095, 1168, 1186, 1460, 1752, 1779, 2190, 2336, 2372, 2920, 2965, 3504, 3558, 4380, 4744, 5840, 5930, 7008, 7116, 8760, 8895, 9488, 11680, 11860, 14232, 17520, 17790, 18976, 23720, 28464, 35040, 35580, 43289, 47440, 56928, 71160, 86578, 94880, 129867, 142320, 173156, 216445, 259734, 284640, 346312, 432890, 519468, 649335, 692624, 865780, 1038936, 1298670, 1385248, 1731560, 2077872, 2597340, 3463120, 4155744, 5194680, 6926240, 10389360, 20778720]

約数ペア:

[(1, 20778720), (2, 10389360), (3, 6926240), (4, 5194680), (5, 4155744), (6, 3463120), (8, 2597340), (10, 2077872), (12, 1731560), (15, 1385248), (16, 1298670), (20, 1038936), (24, 865780), (30, 692624), (32, 649335), (40, 519468), (48, 432890), (60, 346312), (73, 284640), (80, 259734), (96, 216445), (120, 173156), (146, 142320), (160, 129867), (219, 94880), (240, 86578), (292, 71160), (365, 56928), (438, 47440), (480, 43289), (584, 35580), (593, 35040), (730, 28464), (876, 23720), (1095, 18976), (1168, 17790), (1186, 17520), (1460, 14232), (1752, 11860), (1779, 11680), (2190, 9488), (2336, 8895), (2372, 8760), (2920, 7116), (2965, 7008), (3504, 5930), (3558, 5840), (4380, 4744)]