77935520

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{421}}^1$

素因数の和:538

約数の個数: 96

約数和(自身を含む): 200990160

約数和(自身を除く): 123054640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 89, 104, 130, 160, 178, 208, 260, 356, 416, 421, 445, 520, 712, 842, 890, 1040, 1157, 1424, 1684, 1780, 2080, 2105, 2314, 2848, 3368, 3560, 4210, 4628, 5473, 5785, 6736, 7120, 8420, 9256, 10946, 11570, 13472, 14240, 16840, 18512, 21892, 23140, 27365, 33680, 37024, 37469, 43784, 46280, 54730, 67360, 74938, 87568, 92560, 109460, 149876, 175136, 185120, 187345, 218920, 299752, 374690, 437840, 487097, 599504, 749380, 875680, 974194, 1199008, 1498760, 1948388, 2435485, 2997520, 3896776, 4870970, 5995040, 7793552, 9741940, 15587104, 19483880, 38967760, 77935520]

約数ペア:

[(1, 77935520), (2, 38967760), (4, 19483880), (5, 15587104), (8, 9741940), (10, 7793552), (13, 5995040), (16, 4870970), (20, 3896776), (26, 2997520), (32, 2435485), (40, 1948388), (52, 1498760), (65, 1199008), (80, 974194), (89, 875680), (104, 749380), (130, 599504), (160, 487097), (178, 437840), (208, 374690), (260, 299752), (356, 218920), (416, 187345), (421, 185120), (445, 175136), (520, 149876), (712, 109460), (842, 92560), (890, 87568), (1040, 74938), (1157, 67360), (1424, 54730), (1684, 46280), (1780, 43784), (2080, 37469), (2105, 37024), (2314, 33680), (2848, 27365), (3368, 23140), (3560, 21892), (4210, 18512), (4628, 16840), (5473, 14240), (5785, 13472), (6736, 11570), (7120, 10946), (8420, 9256)]