20327720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3821}}^1$

素因数の和:3858

約数の個数: 64

約数和(自身を含む): 55036800

約数和(自身を除く): 34709080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 3821, 5320, 7642, 15284, 19105, 26747, 30568, 38210, 53494, 72599, 76420, 106988, 133735, 145198, 152840, 213976, 267470, 290396, 362995, 508193, 534940, 580792, 725990, 1016386, 1069880, 1451980, 2032772, 2540965, 2903960, 4065544, 5081930, 10163860, 20327720]

約数ペア:

[(1, 20327720), (2, 10163860), (4, 5081930), (5, 4065544), (7, 2903960), (8, 2540965), (10, 2032772), (14, 1451980), (19, 1069880), (20, 1016386), (28, 725990), (35, 580792), (38, 534940), (40, 508193), (56, 362995), (70, 290396), (76, 267470), (95, 213976), (133, 152840), (140, 145198), (152, 133735), (190, 106988), (266, 76420), (280, 72599), (380, 53494), (532, 38210), (665, 30568), (760, 26747), (1064, 19105), (1330, 15284), (2660, 7642), (3821, 5320)]