28960020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{461}}^1$

素因数の和:825

約数の個数: 72

約数和(自身を含む): 88288200

約数和(自身を除く): 59328180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 349, 461, 698, 922, 1047, 1383, 1396, 1745, 1844, 2094, 2305, 2766, 3141, 3490, 4149, 4188, 4610, 5235, 5532, 6282, 6915, 6980, 8298, 9220, 10470, 12564, 13830, 15705, 16596, 20745, 20940, 27660, 31410, 41490, 62820, 82980, 160889, 321778, 482667, 643556, 804445, 965334, 1448001, 1608890, 1930668, 2413335, 2896002, 3217780, 4826670, 5792004, 7240005, 9653340, 14480010, 28960020]

約数ペア:

[(1, 28960020), (2, 14480010), (3, 9653340), (4, 7240005), (5, 5792004), (6, 4826670), (9, 3217780), (10, 2896002), (12, 2413335), (15, 1930668), (18, 1608890), (20, 1448001), (30, 965334), (36, 804445), (45, 643556), (60, 482667), (90, 321778), (180, 160889), (349, 82980), (461, 62820), (698, 41490), (922, 31410), (1047, 27660), (1383, 20940), (1396, 20745), (1745, 16596), (1844, 15705), (2094, 13830), (2305, 12564), (2766, 10470), (3141, 9220), (3490, 8298), (4149, 6980), (4188, 6915), (4610, 6282), (5235, 5532)]