78426460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{1013}}^1$

素因数の和:1115

約数の個数: 72

約数和(自身を含む): 194201280

約数和(自身を除く): 115774820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 79, 98, 140, 158, 196, 245, 316, 395, 490, 553, 790, 980, 1013, 1106, 1580, 2026, 2212, 2765, 3871, 4052, 5065, 5530, 7091, 7742, 10130, 11060, 14182, 15484, 19355, 20260, 28364, 35455, 38710, 49637, 70910, 77420, 80027, 99274, 141820, 160054, 198548, 248185, 320108, 400135, 496370, 560189, 800270, 992740, 1120378, 1600540, 2240756, 2800945, 3921323, 5601890, 7842646, 11203780, 15685292, 19606615, 39213230, 78426460]

約数ペア:

[(1, 78426460), (2, 39213230), (4, 19606615), (5, 15685292), (7, 11203780), (10, 7842646), (14, 5601890), (20, 3921323), (28, 2800945), (35, 2240756), (49, 1600540), (70, 1120378), (79, 992740), (98, 800270), (140, 560189), (158, 496370), (196, 400135), (245, 320108), (316, 248185), (395, 198548), (490, 160054), (553, 141820), (790, 99274), (980, 80027), (1013, 77420), (1106, 70910), (1580, 49637), (2026, 38710), (2212, 35455), (2765, 28364), (3871, 20260), (4052, 19355), (5065, 15484), (5530, 14182), (7091, 11060), (7742, 10130)]