64685440

素因数分解:

$2^7\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1907}}^1$

素因数の和:1979

約数の個数: 64

約数和(自身を含む): 157638960

約数和(自身を除く): 92953520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 128, 160, 212, 265, 320, 424, 530, 640, 848, 1060, 1696, 1907, 2120, 3392, 3814, 4240, 6784, 7628, 8480, 9535, 15256, 16960, 19070, 30512, 33920, 38140, 61024, 76280, 101071, 122048, 152560, 202142, 244096, 305120, 404284, 505355, 610240, 808568, 1010710, 1220480, 1617136, 2021420, 3234272, 4042840, 6468544, 8085680, 12937088, 16171360, 32342720, 64685440]

約数ペア:

[(1, 64685440), (2, 32342720), (4, 16171360), (5, 12937088), (8, 8085680), (10, 6468544), (16, 4042840), (20, 3234272), (32, 2021420), (40, 1617136), (53, 1220480), (64, 1010710), (80, 808568), (106, 610240), (128, 505355), (160, 404284), (212, 305120), (265, 244096), (320, 202142), (424, 152560), (530, 122048), (640, 101071), (848, 76280), (1060, 61024), (1696, 38140), (1907, 33920), (2120, 30512), (3392, 19070), (3814, 16960), (4240, 15256), (6784, 9535), (7628, 8480)]