28725580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:203

約数の個数: 96

約数和(自身を含む): 70531776

約数和(自身を除く): 41806196

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 67, 68, 85, 97, 130, 134, 170, 194, 221, 260, 268, 335, 340, 388, 442, 485, 670, 871, 884, 970, 1105, 1139, 1261, 1340, 1649, 1742, 1940, 2210, 2278, 2522, 3298, 3484, 4355, 4420, 4556, 5044, 5695, 6305, 6499, 6596, 8245, 8710, 11390, 12610, 12998, 14807, 16490, 17420, 21437, 22780, 25220, 25996, 29614, 32495, 32980, 42874, 59228, 64990, 74035, 84487, 85748, 107185, 110483, 129980, 148070, 168974, 214370, 220966, 296140, 337948, 422435, 428740, 441932, 552415, 844870, 1104830, 1436279, 1689740, 2209660, 2872558, 5745116, 7181395, 14362790, 28725580]

約数ペア:

[(1, 28725580), (2, 14362790), (4, 7181395), (5, 5745116), (10, 2872558), (13, 2209660), (17, 1689740), (20, 1436279), (26, 1104830), (34, 844870), (52, 552415), (65, 441932), (67, 428740), (68, 422435), (85, 337948), (97, 296140), (130, 220966), (134, 214370), (170, 168974), (194, 148070), (221, 129980), (260, 110483), (268, 107185), (335, 85748), (340, 84487), (388, 74035), (442, 64990), (485, 59228), (670, 42874), (871, 32980), (884, 32495), (970, 29614), (1105, 25996), (1139, 25220), (1261, 22780), (1340, 21437), (1649, 17420), (1742, 16490), (1940, 14807), (2210, 12998), (2278, 12610), (2522, 11390), (3298, 8710), (3484, 8245), (4355, 6596), (4420, 6499), (4556, 6305), (5044, 5695)]