19180760

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{421}}^1$

素因数の和:516

約数の個数: 64

約数和(自身を含む): 46487520

約数和(自身を除く): 27306760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 67, 68, 85, 134, 136, 170, 268, 335, 340, 421, 536, 670, 680, 842, 1139, 1340, 1684, 2105, 2278, 2680, 3368, 4210, 4556, 5695, 7157, 8420, 9112, 11390, 14314, 16840, 22780, 28207, 28628, 35785, 45560, 56414, 57256, 71570, 112828, 141035, 143140, 225656, 282070, 286280, 479519, 564140, 959038, 1128280, 1918076, 2397595, 3836152, 4795190, 9590380, 19180760]

約数ペア:

[(1, 19180760), (2, 9590380), (4, 4795190), (5, 3836152), (8, 2397595), (10, 1918076), (17, 1128280), (20, 959038), (34, 564140), (40, 479519), (67, 286280), (68, 282070), (85, 225656), (134, 143140), (136, 141035), (170, 112828), (268, 71570), (335, 57256), (340, 56414), (421, 45560), (536, 35785), (670, 28628), (680, 28207), (842, 22780), (1139, 16840), (1340, 14314), (1684, 11390), (2105, 9112), (2278, 8420), (2680, 7157), (3368, 5695), (4210, 4556)]