213475725

素因数分解:

$3^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{317}}^1$

素因数の和:447

約数の個数: 72

約数和(自身を含む): 398302632

約数和(自身を除く): 184826907

約数列:

[1, 3, 5, 9, 15, 25, 41, 45, 73, 75, 123, 205, 219, 225, 317, 365, 369, 615, 657, 951, 1025, 1095, 1585, 1825, 1845, 2853, 2993, 3075, 3285, 4755, 5475, 7925, 8979, 9225, 12997, 14265, 14965, 16425, 23141, 23775, 26937, 38991, 44895, 64985, 69423, 71325, 74825, 115705, 116973, 134685, 194955, 208269, 224475, 324925, 347115, 578525, 584865, 673425, 948781, 974775, 1041345, 1735575, 2846343, 2924325, 4743905, 5206725, 8539029, 14231715, 23719525, 42695145, 71158575, 213475725]

約数ペア:

[(1, 213475725), (3, 71158575), (5, 42695145), (9, 23719525), (15, 14231715), (25, 8539029), (41, 5206725), (45, 4743905), (73, 2924325), (75, 2846343), (123, 1735575), (205, 1041345), (219, 974775), (225, 948781), (317, 673425), (365, 584865), (369, 578525), (615, 347115), (657, 324925), (951, 224475), (1025, 208269), (1095, 194955), (1585, 134685), (1825, 116973), (1845, 115705), (2853, 74825), (2993, 71325), (3075, 69423), (3285, 64985), (4755, 44895), (5475, 38991), (7925, 26937), (8979, 23775), (9225, 23141), (12997, 16425), (14265, 14965)]