168979100

素因数分解:

$2^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{229}}^1$

素因数の和:447

約数の個数: 72

約数和(自身を含む): 378517440

約数和(自身を除く): 209538340

約数列:

[1, 2, 4, 5, 10, 20, 25, 47, 50, 94, 100, 157, 188, 229, 235, 314, 458, 470, 628, 785, 916, 940, 1145, 1175, 1570, 2290, 2350, 3140, 3925, 4580, 4700, 5725, 7379, 7850, 10763, 11450, 14758, 15700, 21526, 22900, 29516, 35953, 36895, 43052, 53815, 71906, 73790, 107630, 143812, 147580, 179765, 184475, 215260, 269075, 359530, 368950, 538150, 719060, 737900, 898825, 1076300, 1689791, 1797650, 3379582, 3595300, 6759164, 8448955, 16897910, 33795820, 42244775, 84489550, 168979100]

約数ペア:

[(1, 168979100), (2, 84489550), (4, 42244775), (5, 33795820), (10, 16897910), (20, 8448955), (25, 6759164), (47, 3595300), (50, 3379582), (94, 1797650), (100, 1689791), (157, 1076300), (188, 898825), (229, 737900), (235, 719060), (314, 538150), (458, 368950), (470, 359530), (628, 269075), (785, 215260), (916, 184475), (940, 179765), (1145, 147580), (1175, 143812), (1570, 107630), (2290, 73790), (2350, 71906), (3140, 53815), (3925, 43052), (4580, 36895), (4700, 35953), (5725, 29516), (7379, 22900), (7850, 21526), (10763, 15700), (11450, 14758)]