1640574715

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{1019}}^1$

素因数の和:1132

約数の個数: 64

約数和(自身を含む): 2368880640

約数和(自身を除く): 728305925

約数列:

[1, 5, 13, 17, 31, 47, 65, 85, 155, 221, 235, 403, 527, 611, 799, 1019, 1105, 1457, 2015, 2635, 3055, 3995, 5095, 6851, 7285, 10387, 13247, 17323, 18941, 24769, 31589, 34255, 47893, 51935, 66235, 86615, 94705, 123845, 157945, 225199, 239465, 321997, 410657, 537013, 622609, 814181, 1125995, 1484683, 1609985, 2053285, 2685065, 3113045, 4070905, 6981169, 7423415, 10584353, 19300879, 25239611, 34905845, 52921765, 96504395, 126198055, 328114943, 1640574715]

約数ペア:

[(1, 1640574715), (5, 328114943), (13, 126198055), (17, 96504395), (31, 52921765), (47, 34905845), (65, 25239611), (85, 19300879), (155, 10584353), (221, 7423415), (235, 6981169), (403, 4070905), (527, 3113045), (611, 2685065), (799, 2053285), (1019, 1609985), (1105, 1484683), (1457, 1125995), (2015, 814181), (2635, 622609), (3055, 537013), (3995, 410657), (5095, 321997), (6851, 239465), (7285, 225199), (10387, 157945), (13247, 123845), (17323, 94705), (18941, 86615), (24769, 66235), (31589, 51935), (34255, 47893)]