71147020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{3821}}^1$

素因数の和:3863

約数の個数: 72

約数和(自身を含む): 182997360

約数和(自身を除く): 111850340

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 490, 532, 665, 931, 980, 1330, 1862, 2660, 3724, 3821, 4655, 7642, 9310, 15284, 18620, 19105, 26747, 38210, 53494, 72599, 76420, 106988, 133735, 145198, 187229, 267470, 290396, 362995, 374458, 508193, 534940, 725990, 748916, 936145, 1016386, 1451980, 1872290, 2032772, 2540965, 3557351, 3744580, 5081930, 7114702, 10163860, 14229404, 17786755, 35573510, 71147020]

約数ペア:

[(1, 71147020), (2, 35573510), (4, 17786755), (5, 14229404), (7, 10163860), (10, 7114702), (14, 5081930), (19, 3744580), (20, 3557351), (28, 2540965), (35, 2032772), (38, 1872290), (49, 1451980), (70, 1016386), (76, 936145), (95, 748916), (98, 725990), (133, 534940), (140, 508193), (190, 374458), (196, 362995), (245, 290396), (266, 267470), (380, 187229), (490, 145198), (532, 133735), (665, 106988), (931, 76420), (980, 72599), (1330, 53494), (1862, 38210), (2660, 26747), (3724, 19105), (3821, 18620), (4655, 15284), (7642, 9310)]