15840100

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:205

約数の個数: 72

約数和(自身を含む): 36747648

約数和(自身を除く): 20907548

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 71, 92, 97, 100, 115, 142, 194, 230, 284, 355, 388, 460, 485, 575, 710, 970, 1150, 1420, 1633, 1775, 1940, 2231, 2300, 2425, 3266, 3550, 4462, 4850, 6532, 6887, 7100, 8165, 8924, 9700, 11155, 13774, 16330, 22310, 27548, 32660, 34435, 40825, 44620, 55775, 68870, 81650, 111550, 137740, 158401, 163300, 172175, 223100, 316802, 344350, 633604, 688700, 792005, 1584010, 3168020, 3960025, 7920050, 15840100]

約数ペア:

[(1, 15840100), (2, 7920050), (4, 3960025), (5, 3168020), (10, 1584010), (20, 792005), (23, 688700), (25, 633604), (46, 344350), (50, 316802), (71, 223100), (92, 172175), (97, 163300), (100, 158401), (115, 137740), (142, 111550), (194, 81650), (230, 68870), (284, 55775), (355, 44620), (388, 40825), (460, 34435), (485, 32660), (575, 27548), (710, 22310), (970, 16330), (1150, 13774), (1420, 11155), (1633, 9700), (1775, 8924), (1940, 8165), (2231, 7100), (2300, 6887), (2425, 6532), (3266, 4850), (3550, 4462)]