1391786788

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{1459}}^1$

素因数の和:1665

約数の個数: 72

約数和(自身を含む): 2945322240

約数和(自身を除く): 1553535452

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 98, 124, 157, 196, 217, 314, 434, 628, 868, 1099, 1459, 1519, 2198, 2918, 3038, 4396, 4867, 5836, 6076, 7693, 9734, 10213, 15386, 19468, 20426, 30772, 34069, 40852, 45229, 68138, 71491, 90458, 136276, 142982, 180916, 229063, 238483, 285964, 316603, 458126, 476966, 633206, 916252, 953932, 1266412, 1603441, 2216221, 3206882, 4432442, 6413764, 7100953, 8864884, 11224087, 14201906, 22448174, 28403812, 44896348, 49706671, 99413342, 198826684, 347946697, 695893394, 1391786788]

約数ペア:

[(1, 1391786788), (2, 695893394), (4, 347946697), (7, 198826684), (14, 99413342), (28, 49706671), (31, 44896348), (49, 28403812), (62, 22448174), (98, 14201906), (124, 11224087), (157, 8864884), (196, 7100953), (217, 6413764), (314, 4432442), (434, 3206882), (628, 2216221), (868, 1603441), (1099, 1266412), (1459, 953932), (1519, 916252), (2198, 633206), (2918, 476966), (3038, 458126), (4396, 316603), (4867, 285964), (5836, 238483), (6076, 229063), (7693, 180916), (9734, 142982), (10213, 136276), (15386, 90458), (19468, 71491), (20426, 68138), (30772, 45229), (34069, 40852)]