64425440

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^2\times {\mathrm{419}}^1$

素因数の和:496

約数の個数: 72

約数和(自身を含む): 157648680

約数和(自身を除く): 93223240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 419, 496, 620, 838, 961, 992, 1240, 1676, 1922, 2095, 2480, 3352, 3844, 4190, 4805, 4960, 6704, 7688, 8380, 9610, 12989, 13408, 15376, 16760, 19220, 25978, 30752, 33520, 38440, 51956, 64945, 67040, 76880, 103912, 129890, 153760, 207824, 259780, 402659, 415648, 519560, 805318, 1039120, 1610636, 2013295, 2078240, 3221272, 4026590, 6442544, 8053180, 12885088, 16106360, 32212720, 64425440]

約数ペア:

[(1, 64425440), (2, 32212720), (4, 16106360), (5, 12885088), (8, 8053180), (10, 6442544), (16, 4026590), (20, 3221272), (31, 2078240), (32, 2013295), (40, 1610636), (62, 1039120), (80, 805318), (124, 519560), (155, 415648), (160, 402659), (248, 259780), (310, 207824), (419, 153760), (496, 129890), (620, 103912), (838, 76880), (961, 67040), (992, 64945), (1240, 51956), (1676, 38440), (1922, 33520), (2095, 30752), (2480, 25978), (3352, 19220), (3844, 16760), (4190, 15376), (4805, 13408), (4960, 12989), (6704, 9610), (7688, 8380)]