259499264

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1721}}^1$

素因数の和:1787

約数の個数: 72

約数和(自身を含む): 563162880

約数和(自身を除く): 303663616

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 62, 64, 76, 124, 128, 152, 248, 256, 304, 496, 589, 608, 992, 1178, 1216, 1721, 1984, 2356, 2432, 3442, 3968, 4712, 4864, 6884, 7936, 9424, 13768, 18848, 27536, 32699, 37696, 53351, 55072, 65398, 75392, 106702, 110144, 130796, 150784, 213404, 220288, 261592, 426808, 440576, 523184, 853616, 1013669, 1046368, 1707232, 2027338, 2092736, 3414464, 4054676, 4185472, 6828928, 8109352, 8370944, 13657856, 16218704, 32437408, 64874816, 129749632, 259499264]

約数ペア:

[(1, 259499264), (2, 129749632), (4, 64874816), (8, 32437408), (16, 16218704), (19, 13657856), (31, 8370944), (32, 8109352), (38, 6828928), (62, 4185472), (64, 4054676), (76, 3414464), (124, 2092736), (128, 2027338), (152, 1707232), (248, 1046368), (256, 1013669), (304, 853616), (496, 523184), (589, 440576), (608, 426808), (992, 261592), (1178, 220288), (1216, 213404), (1721, 150784), (1984, 130796), (2356, 110144), (2432, 106702), (3442, 75392), (3968, 65398), (4712, 55072), (4864, 53351), (6884, 37696), (7936, 32699), (9424, 27536), (13768, 18848)]