65072720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1381}}^1$

素因数の和:1444

約数の個数: 80

約数和(自身を含む): 164513280

約数和(自身を除く): 99440560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 62, 76, 80, 95, 124, 152, 155, 190, 248, 304, 310, 380, 496, 589, 620, 760, 1178, 1240, 1381, 1520, 2356, 2480, 2762, 2945, 4712, 5524, 5890, 6905, 9424, 11048, 11780, 13810, 22096, 23560, 26239, 27620, 42811, 47120, 52478, 55240, 85622, 104956, 110480, 131195, 171244, 209912, 214055, 262390, 342488, 419824, 428110, 524780, 684976, 813409, 856220, 1049560, 1626818, 1712440, 2099120, 3253636, 3424880, 4067045, 6507272, 8134090, 13014544, 16268180, 32536360, 65072720]

約数ペア:

[(1, 65072720), (2, 32536360), (4, 16268180), (5, 13014544), (8, 8134090), (10, 6507272), (16, 4067045), (19, 3424880), (20, 3253636), (31, 2099120), (38, 1712440), (40, 1626818), (62, 1049560), (76, 856220), (80, 813409), (95, 684976), (124, 524780), (152, 428110), (155, 419824), (190, 342488), (248, 262390), (304, 214055), (310, 209912), (380, 171244), (496, 131195), (589, 110480), (620, 104956), (760, 85622), (1178, 55240), (1240, 52478), (1381, 47120), (1520, 42811), (2356, 27620), (2480, 26239), (2762, 23560), (2945, 22096), (4712, 13810), (5524, 11780), (5890, 11048), (6905, 9424)]