25488015

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:272

約数の個数: 64

約数和(自身を含む): 50181120

約数和(自身を除く): 24693105

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 105, 109, 119, 131, 255, 327, 357, 393, 545, 595, 655, 763, 917, 1635, 1785, 1853, 1965, 2227, 2289, 2751, 3815, 4585, 5559, 6681, 9265, 11135, 11445, 12971, 13755, 14279, 15589, 27795, 33405, 38913, 42837, 46767, 64855, 71395, 77945, 99953, 194565, 214185, 233835, 242743, 299859, 499765, 728229, 1213715, 1499295, 1699201, 3641145, 5097603, 8496005, 25488015]

約数ペア:

[(1, 25488015), (3, 8496005), (5, 5097603), (7, 3641145), (15, 1699201), (17, 1499295), (21, 1213715), (35, 728229), (51, 499765), (85, 299859), (105, 242743), (109, 233835), (119, 214185), (131, 194565), (255, 99953), (327, 77945), (357, 71395), (393, 64855), (545, 46767), (595, 42837), (655, 38913), (763, 33405), (917, 27795), (1635, 15589), (1785, 14279), (1853, 13755), (1965, 12971), (2227, 11445), (2289, 11135), (2751, 9265), (3815, 6681), (4585, 5559)]