78641668

素因数分解:

$2^2\times 7^3\times {\mathrm{31}}^1\times {\mathrm{43}}^2$

素因数の和:142

約数の個数: 72

約数和(自身を含む): 169612800

約数和(自身を除く): 90971132

約数列:

[1, 2, 4, 7, 14, 28, 31, 43, 49, 62, 86, 98, 124, 172, 196, 217, 301, 343, 434, 602, 686, 868, 1204, 1333, 1372, 1519, 1849, 2107, 2666, 3038, 3698, 4214, 5332, 6076, 7396, 8428, 9331, 10633, 12943, 14749, 18662, 21266, 25886, 29498, 37324, 42532, 51772, 57319, 58996, 65317, 90601, 114638, 130634, 181202, 229276, 261268, 362404, 401233, 457219, 634207, 802466, 914438, 1268414, 1604932, 1828876, 2536828, 2808631, 5617262, 11234524, 19660417, 39320834, 78641668]

約数ペア:

[(1, 78641668), (2, 39320834), (4, 19660417), (7, 11234524), (14, 5617262), (28, 2808631), (31, 2536828), (43, 1828876), (49, 1604932), (62, 1268414), (86, 914438), (98, 802466), (124, 634207), (172, 457219), (196, 401233), (217, 362404), (301, 261268), (343, 229276), (434, 181202), (602, 130634), (686, 114638), (868, 90601), (1204, 65317), (1333, 58996), (1372, 57319), (1519, 51772), (1849, 42532), (2107, 37324), (2666, 29498), (3038, 25886), (3698, 21266), (4214, 18662), (5332, 14749), (6076, 12943), (7396, 10633), (8428, 9331)]