64689760

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^2\times {\mathrm{1399}}^1$

素因数の和:1448

約数の個数: 72

約数和(自身を含む): 162464400

約数和(自身を除く): 97774640

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 289, 340, 544, 578, 680, 1156, 1360, 1399, 1445, 2312, 2720, 2798, 2890, 4624, 5596, 5780, 6995, 9248, 11192, 11560, 13990, 22384, 23120, 23783, 27980, 44768, 46240, 47566, 55960, 95132, 111920, 118915, 190264, 223840, 237830, 380528, 404311, 475660, 761056, 808622, 951320, 1617244, 1902640, 2021555, 3234488, 3805280, 4043110, 6468976, 8086220, 12937952, 16172440, 32344880, 64689760]

約数ペア:

[(1, 64689760), (2, 32344880), (4, 16172440), (5, 12937952), (8, 8086220), (10, 6468976), (16, 4043110), (17, 3805280), (20, 3234488), (32, 2021555), (34, 1902640), (40, 1617244), (68, 951320), (80, 808622), (85, 761056), (136, 475660), (160, 404311), (170, 380528), (272, 237830), (289, 223840), (340, 190264), (544, 118915), (578, 111920), (680, 95132), (1156, 55960), (1360, 47566), (1399, 46240), (1445, 44768), (2312, 27980), (2720, 23783), (2798, 23120), (2890, 22384), (4624, 13990), (5596, 11560), (5780, 11192), (6995, 9248)]