20869280

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1$

素因数の和:198

約数の個数: 96

約数和(自身を含む): 52907904

約数和(自身を除く): 32038624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 53, 80, 92, 106, 107, 115, 160, 184, 212, 214, 230, 265, 368, 424, 428, 460, 530, 535, 736, 848, 856, 920, 1060, 1070, 1219, 1696, 1712, 1840, 2120, 2140, 2438, 2461, 3424, 3680, 4240, 4280, 4876, 4922, 5671, 6095, 8480, 8560, 9752, 9844, 11342, 12190, 12305, 17120, 19504, 19688, 22684, 24380, 24610, 28355, 39008, 39376, 45368, 48760, 49220, 56710, 78752, 90736, 97520, 98440, 113420, 130433, 181472, 195040, 196880, 226840, 260866, 393760, 453680, 521732, 652165, 907360, 1043464, 1304330, 2086928, 2608660, 4173856, 5217320, 10434640, 20869280]

約数ペア:

[(1, 20869280), (2, 10434640), (4, 5217320), (5, 4173856), (8, 2608660), (10, 2086928), (16, 1304330), (20, 1043464), (23, 907360), (32, 652165), (40, 521732), (46, 453680), (53, 393760), (80, 260866), (92, 226840), (106, 196880), (107, 195040), (115, 181472), (160, 130433), (184, 113420), (212, 98440), (214, 97520), (230, 90736), (265, 78752), (368, 56710), (424, 49220), (428, 48760), (460, 45368), (530, 39376), (535, 39008), (736, 28355), (848, 24610), (856, 24380), (920, 22684), (1060, 19688), (1070, 19504), (1219, 17120), (1696, 12305), (1712, 12190), (1840, 11342), (2120, 9844), (2140, 9752), (2438, 8560), (2461, 8480), (3424, 6095), (3680, 5671), (4240, 4922), (4280, 4876)]