28901925

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{241}}^1$

素因数の和:311

約数の個数: 72

約数和(自身を含む): 57345288

約数和(自身を除く): 28443363

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 41, 45, 65, 75, 117, 123, 195, 205, 225, 241, 325, 369, 533, 585, 615, 723, 975, 1025, 1205, 1599, 1845, 2169, 2665, 2925, 3075, 3133, 3615, 4797, 6025, 7995, 9225, 9399, 9881, 10845, 13325, 15665, 18075, 23985, 28197, 29643, 39975, 46995, 49405, 54225, 78325, 88929, 119925, 128453, 140985, 148215, 234975, 247025, 385359, 444645, 642265, 704925, 741075, 1156077, 1926795, 2223225, 3211325, 5780385, 9633975, 28901925]

約数ペア:

[(1, 28901925), (3, 9633975), (5, 5780385), (9, 3211325), (13, 2223225), (15, 1926795), (25, 1156077), (39, 741075), (41, 704925), (45, 642265), (65, 444645), (75, 385359), (117, 247025), (123, 234975), (195, 148215), (205, 140985), (225, 128453), (241, 119925), (325, 88929), (369, 78325), (533, 54225), (585, 49405), (615, 46995), (723, 39975), (975, 29643), (1025, 28197), (1205, 23985), (1599, 18075), (1845, 15665), (2169, 13325), (2665, 10845), (2925, 9881), (3075, 9399), (3133, 9225), (3615, 7995), (4797, 6025)]