71881784

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{673}}^1$

素因数の和:784

約数の個数: 48

約数和(自身を含む): 148010400

約数和(自身を除く): 76128616

約数列:

[1, 2, 4, 8, 13, 26, 52, 79, 104, 158, 169, 316, 338, 632, 673, 676, 1027, 1346, 1352, 2054, 2692, 4108, 5384, 8216, 8749, 13351, 17498, 26702, 34996, 53167, 53404, 69992, 106334, 106808, 113737, 212668, 227474, 425336, 454948, 691171, 909896, 1382342, 2764684, 5529368, 8985223, 17970446, 35940892, 71881784]

約数ペア:

[(1, 71881784), (2, 35940892), (4, 17970446), (8, 8985223), (13, 5529368), (26, 2764684), (52, 1382342), (79, 909896), (104, 691171), (158, 454948), (169, 425336), (316, 227474), (338, 212668), (632, 113737), (673, 106808), (676, 106334), (1027, 69992), (1346, 53404), (1352, 53167), (2054, 34996), (2692, 26702), (4108, 17498), (5384, 13351), (8216, 8749)]