258689730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{21397}}^1$

素因数の和:21451

約数の個数: 64

約数和(自身を含む): 690213888

約数和(自身を除く): 431524158

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 31, 39, 62, 65, 78, 93, 130, 155, 186, 195, 310, 390, 403, 465, 806, 930, 1209, 2015, 2418, 4030, 6045, 12090, 21397, 42794, 64191, 106985, 128382, 213970, 278161, 320955, 556322, 641910, 663307, 834483, 1326614, 1390805, 1668966, 1989921, 2781610, 3316535, 3979842, 4172415, 6633070, 8344830, 8622991, 9949605, 17245982, 19899210, 25868973, 43114955, 51737946, 86229910, 129344865, 258689730]

約数ペア:

[(1, 258689730), (2, 129344865), (3, 86229910), (5, 51737946), (6, 43114955), (10, 25868973), (13, 19899210), (15, 17245982), (26, 9949605), (30, 8622991), (31, 8344830), (39, 6633070), (62, 4172415), (65, 3979842), (78, 3316535), (93, 2781610), (130, 1989921), (155, 1668966), (186, 1390805), (195, 1326614), (310, 834483), (390, 663307), (403, 641910), (465, 556322), (806, 320955), (930, 278161), (1209, 213970), (2015, 128382), (2418, 106985), (4030, 64191), (6045, 42794), (12090, 21397)]