68656880

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2657}}^1$

素因数の和:2706

約数の個数: 80

約数和(自身を含む): 177979680

約数和(自身を除く): 109322800

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 68, 76, 80, 85, 95, 136, 152, 170, 190, 272, 304, 323, 340, 380, 646, 680, 760, 1292, 1360, 1520, 1615, 2584, 2657, 3230, 5168, 5314, 6460, 10628, 12920, 13285, 21256, 25840, 26570, 42512, 45169, 50483, 53140, 90338, 100966, 106280, 180676, 201932, 212560, 225845, 252415, 361352, 403864, 451690, 504830, 722704, 807728, 858211, 903380, 1009660, 1716422, 1806760, 2019320, 3432844, 3613520, 4038640, 4291055, 6865688, 8582110, 13731376, 17164220, 34328440, 68656880]

約数ペア:

[(1, 68656880), (2, 34328440), (4, 17164220), (5, 13731376), (8, 8582110), (10, 6865688), (16, 4291055), (17, 4038640), (19, 3613520), (20, 3432844), (34, 2019320), (38, 1806760), (40, 1716422), (68, 1009660), (76, 903380), (80, 858211), (85, 807728), (95, 722704), (136, 504830), (152, 451690), (170, 403864), (190, 361352), (272, 252415), (304, 225845), (323, 212560), (340, 201932), (380, 180676), (646, 106280), (680, 100966), (760, 90338), (1292, 53140), (1360, 50483), (1520, 45169), (1615, 42512), (2584, 26570), (2657, 25840), (3230, 21256), (5168, 13285), (5314, 12920), (6460, 10628)]