428702980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{251}}^1$

素因数の和:409

約数の個数: 96

約数和(自身を含む): 975421440

約数和(自身を除く): 546718460

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 47, 79, 92, 94, 115, 158, 188, 230, 235, 251, 316, 395, 460, 470, 502, 790, 940, 1004, 1081, 1255, 1580, 1817, 2162, 2510, 3634, 3713, 4324, 5020, 5405, 5773, 7268, 7426, 9085, 10810, 11546, 11797, 14852, 18170, 18565, 19829, 21620, 23092, 23594, 28865, 36340, 37130, 39658, 47188, 57730, 58985, 74260, 79316, 85399, 99145, 115460, 117970, 170798, 198290, 235940, 271331, 341596, 396580, 426995, 456067, 542662, 853990, 912134, 931963, 1085324, 1356655, 1707980, 1824268, 1863926, 2280335, 2713310, 3727852, 4560670, 4659815, 5426620, 9121340, 9319630, 18639260, 21435149, 42870298, 85740596, 107175745, 214351490, 428702980]

約数ペア:

[(1, 428702980), (2, 214351490), (4, 107175745), (5, 85740596), (10, 42870298), (20, 21435149), (23, 18639260), (46, 9319630), (47, 9121340), (79, 5426620), (92, 4659815), (94, 4560670), (115, 3727852), (158, 2713310), (188, 2280335), (230, 1863926), (235, 1824268), (251, 1707980), (316, 1356655), (395, 1085324), (460, 931963), (470, 912134), (502, 853990), (790, 542662), (940, 456067), (1004, 426995), (1081, 396580), (1255, 341596), (1580, 271331), (1817, 235940), (2162, 198290), (2510, 170798), (3634, 117970), (3713, 115460), (4324, 99145), (5020, 85399), (5405, 79316), (5773, 74260), (7268, 58985), (7426, 57730), (9085, 47188), (10810, 39658), (11546, 37130), (11797, 36340), (14852, 28865), (18170, 23594), (18565, 23092), (19829, 21620)]