278317840

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{1601}}^1$

素因数の和:1708

約数の個数: 80

約数和(自身を含む): 675800496

約数和(自身を除く): 397482656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 53, 80, 82, 106, 164, 205, 212, 265, 328, 410, 424, 530, 656, 820, 848, 1060, 1601, 1640, 2120, 2173, 3202, 3280, 4240, 4346, 6404, 8005, 8692, 10865, 12808, 16010, 17384, 21730, 25616, 32020, 34768, 43460, 64040, 65641, 84853, 86920, 128080, 131282, 169706, 173840, 262564, 328205, 339412, 424265, 525128, 656410, 678824, 848530, 1050256, 1312820, 1357648, 1697060, 2625640, 3394120, 3478973, 5251280, 6788240, 6957946, 13915892, 17394865, 27831784, 34789730, 55663568, 69579460, 139158920, 278317840]

約数ペア:

[(1, 278317840), (2, 139158920), (4, 69579460), (5, 55663568), (8, 34789730), (10, 27831784), (16, 17394865), (20, 13915892), (40, 6957946), (41, 6788240), (53, 5251280), (80, 3478973), (82, 3394120), (106, 2625640), (164, 1697060), (205, 1357648), (212, 1312820), (265, 1050256), (328, 848530), (410, 678824), (424, 656410), (530, 525128), (656, 424265), (820, 339412), (848, 328205), (1060, 262564), (1601, 173840), (1640, 169706), (2120, 131282), (2173, 128080), (3202, 86920), (3280, 84853), (4240, 65641), (4346, 64040), (6404, 43460), (8005, 34768), (8692, 32020), (10865, 25616), (12808, 21730), (16010, 17384)]