64812640

素因数分解:

$2^5\times 5^1\times {\mathrm{53}}^1\times {\mathrm{7643}}^1$

素因数の和:7711

約数の個数: 48

約数和(自身を含む): 156029328

約数和(自身を除く): 91216688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 80, 106, 160, 212, 265, 424, 530, 848, 1060, 1696, 2120, 4240, 7643, 8480, 15286, 30572, 38215, 61144, 76430, 122288, 152860, 244576, 305720, 405079, 611440, 810158, 1222880, 1620316, 2025395, 3240632, 4050790, 6481264, 8101580, 12962528, 16203160, 32406320, 64812640]

約数ペア:

[(1, 64812640), (2, 32406320), (4, 16203160), (5, 12962528), (8, 8101580), (10, 6481264), (16, 4050790), (20, 3240632), (32, 2025395), (40, 1620316), (53, 1222880), (80, 810158), (106, 611440), (160, 405079), (212, 305720), (265, 244576), (424, 152860), (530, 122288), (848, 76430), (1060, 61144), (1696, 38215), (2120, 30572), (4240, 15286), (7643, 8480)]