15678867440

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{439}}^1\times {\mathrm{26261}}^1$

素因数の和:26730

約数の個数: 80

約数和(自身を含む): 38687077440

約数和(自身を除く): 23008210000

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 439, 680, 878, 1360, 1756, 2195, 3512, 4390, 7024, 7463, 8780, 14926, 17560, 26261, 29852, 35120, 37315, 52522, 59704, 74630, 105044, 119408, 131305, 149260, 210088, 262610, 298520, 420176, 446437, 525220, 597040, 892874, 1050440, 1785748, 2100880, 2232185, 3571496, 4464370, 7142992, 8928740, 11528579, 17857480, 23057158, 35714960, 46114316, 57642895, 92228632, 115285790, 184457264, 195985843, 230571580, 391971686, 461143160, 783943372, 922286320, 979929215, 1567886744, 1959858430, 3135773488, 3919716860, 7839433720, 15678867440]

約数ペア:

[(1, 15678867440), (2, 7839433720), (4, 3919716860), (5, 3135773488), (8, 1959858430), (10, 1567886744), (16, 979929215), (17, 922286320), (20, 783943372), (34, 461143160), (40, 391971686), (68, 230571580), (80, 195985843), (85, 184457264), (136, 115285790), (170, 92228632), (272, 57642895), (340, 46114316), (439, 35714960), (680, 23057158), (878, 17857480), (1360, 11528579), (1756, 8928740), (2195, 7142992), (3512, 4464370), (4390, 3571496), (7024, 2232185), (7463, 2100880), (8780, 1785748), (14926, 1050440), (17560, 892874), (26261, 597040), (29852, 525220), (35120, 446437), (37315, 420176), (52522, 298520), (59704, 262610), (74630, 210088), (105044, 149260), (119408, 131305)]