64874816

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1721}}^1$

素因数の和:1783

約数の個数: 56

約数和(自身を含む): 139964160

約数和(自身を除く): 75089344

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 62, 64, 76, 124, 152, 248, 304, 496, 589, 608, 992, 1178, 1216, 1721, 1984, 2356, 3442, 4712, 6884, 9424, 13768, 18848, 27536, 32699, 37696, 53351, 55072, 65398, 106702, 110144, 130796, 213404, 261592, 426808, 523184, 853616, 1013669, 1046368, 1707232, 2027338, 2092736, 3414464, 4054676, 8109352, 16218704, 32437408, 64874816]

約数ペア:

[(1, 64874816), (2, 32437408), (4, 16218704), (8, 8109352), (16, 4054676), (19, 3414464), (31, 2092736), (32, 2027338), (38, 1707232), (62, 1046368), (64, 1013669), (76, 853616), (124, 523184), (152, 426808), (248, 261592), (304, 213404), (496, 130796), (589, 110144), (608, 106702), (992, 65398), (1178, 55072), (1216, 53351), (1721, 37696), (1984, 32699), (2356, 27536), (3442, 18848), (4712, 13768), (6884, 9424)]