81622575

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{313}}^1$

素因数の和:409

約数の個数: 72

約数和(自身を含む): 156912080

約数和(自身を除く): 75289505

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 61, 75, 95, 171, 183, 225, 285, 305, 313, 475, 549, 855, 915, 939, 1159, 1425, 1525, 1565, 2745, 2817, 3477, 4275, 4575, 4695, 5795, 5947, 7825, 10431, 13725, 14085, 17385, 17841, 19093, 23475, 28975, 29735, 52155, 53523, 57279, 70425, 86925, 89205, 95465, 148675, 171837, 260775, 267615, 286395, 362767, 446025, 477325, 859185, 1088301, 1338075, 1431975, 1813835, 3264903, 4295925, 5441505, 9069175, 16324515, 27207525, 81622575]

約数ペア:

[(1, 81622575), (3, 27207525), (5, 16324515), (9, 9069175), (15, 5441505), (19, 4295925), (25, 3264903), (45, 1813835), (57, 1431975), (61, 1338075), (75, 1088301), (95, 859185), (171, 477325), (183, 446025), (225, 362767), (285, 286395), (305, 267615), (313, 260775), (475, 171837), (549, 148675), (855, 95465), (915, 89205), (939, 86925), (1159, 70425), (1425, 57279), (1525, 53523), (1565, 52155), (2745, 29735), (2817, 28975), (3477, 23475), (4275, 19093), (4575, 17841), (4695, 17385), (5795, 14085), (5947, 13725), (7825, 10431)]