12815960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{401}}^1$

素因数の和:476

約数の個数: 64

約数和(自身を含む): 31259520

約数和(自身を除く): 18443560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 47, 68, 85, 94, 136, 170, 188, 235, 340, 376, 401, 470, 680, 799, 802, 940, 1598, 1604, 1880, 2005, 3196, 3208, 3995, 4010, 6392, 6817, 7990, 8020, 13634, 15980, 16040, 18847, 27268, 31960, 34085, 37694, 54536, 68170, 75388, 94235, 136340, 150776, 188470, 272680, 320399, 376940, 640798, 753880, 1281596, 1601995, 2563192, 3203990, 6407980, 12815960]

約数ペア:

[(1, 12815960), (2, 6407980), (4, 3203990), (5, 2563192), (8, 1601995), (10, 1281596), (17, 753880), (20, 640798), (34, 376940), (40, 320399), (47, 272680), (68, 188470), (85, 150776), (94, 136340), (136, 94235), (170, 75388), (188, 68170), (235, 54536), (340, 37694), (376, 34085), (401, 31960), (470, 27268), (680, 18847), (799, 16040), (802, 15980), (940, 13634), (1598, 8020), (1604, 7990), (1880, 6817), (2005, 6392), (3196, 4010), (3208, 3995)]