15857920

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{953}}^1$

素因数の和:987

約数の個数: 72

約数和(自身を含む): 40949496

約数和(自身を除く): 25091576

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 953, 1040, 1280, 1664, 1906, 2080, 3328, 3812, 4160, 4765, 7624, 8320, 9530, 12389, 15248, 16640, 19060, 24778, 30496, 38120, 49556, 60992, 61945, 76240, 99112, 121984, 123890, 152480, 198224, 243968, 247780, 304960, 396448, 495560, 609920, 792896, 991120, 1219840, 1585792, 1982240, 3171584, 3964480, 7928960, 15857920]

約数ペア:

[(1, 15857920), (2, 7928960), (4, 3964480), (5, 3171584), (8, 1982240), (10, 1585792), (13, 1219840), (16, 991120), (20, 792896), (26, 609920), (32, 495560), (40, 396448), (52, 304960), (64, 247780), (65, 243968), (80, 198224), (104, 152480), (128, 123890), (130, 121984), (160, 99112), (208, 76240), (256, 61945), (260, 60992), (320, 49556), (416, 38120), (520, 30496), (640, 24778), (832, 19060), (953, 16640), (1040, 15248), (1280, 12389), (1664, 9530), (1906, 8320), (2080, 7624), (3328, 4765), (3812, 4160)]