89580140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1559}}^1$

素因数の和:1611

約数の個数: 72

約数和(自身を含む): 215822880

約数和(自身を除く): 126242740

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 169, 170, 221, 260, 338, 340, 442, 676, 845, 884, 1105, 1559, 1690, 2210, 2873, 3118, 3380, 4420, 5746, 6236, 7795, 11492, 14365, 15590, 20267, 26503, 28730, 31180, 40534, 53006, 57460, 81068, 101335, 106012, 132515, 202670, 263471, 265030, 344539, 405340, 526942, 530060, 689078, 1053884, 1317355, 1378156, 1722695, 2634710, 3445390, 4479007, 5269420, 6890780, 8958014, 17916028, 22395035, 44790070, 89580140]

約数ペア:

[(1, 89580140), (2, 44790070), (4, 22395035), (5, 17916028), (10, 8958014), (13, 6890780), (17, 5269420), (20, 4479007), (26, 3445390), (34, 2634710), (52, 1722695), (65, 1378156), (68, 1317355), (85, 1053884), (130, 689078), (169, 530060), (170, 526942), (221, 405340), (260, 344539), (338, 265030), (340, 263471), (442, 202670), (676, 132515), (845, 106012), (884, 101335), (1105, 81068), (1559, 57460), (1690, 53006), (2210, 40534), (2873, 31180), (3118, 28730), (3380, 26503), (4420, 20267), (5746, 15590), (6236, 14365), (7795, 11492)]