19471120

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:272

約数の個数: 80

約数和(自身を含む): 48746880

約数和(自身を除く): 29275760

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 103, 136, 139, 170, 206, 272, 278, 340, 412, 515, 556, 680, 695, 824, 1030, 1112, 1360, 1390, 1648, 1751, 2060, 2224, 2363, 2780, 3502, 4120, 4726, 5560, 7004, 8240, 8755, 9452, 11120, 11815, 14008, 14317, 17510, 18904, 23630, 28016, 28634, 35020, 37808, 47260, 57268, 70040, 71585, 94520, 114536, 140080, 143170, 189040, 229072, 243389, 286340, 486778, 572680, 973556, 1145360, 1216945, 1947112, 2433890, 3894224, 4867780, 9735560, 19471120]

約数ペア:

[(1, 19471120), (2, 9735560), (4, 4867780), (5, 3894224), (8, 2433890), (10, 1947112), (16, 1216945), (17, 1145360), (20, 973556), (34, 572680), (40, 486778), (68, 286340), (80, 243389), (85, 229072), (103, 189040), (136, 143170), (139, 140080), (170, 114536), (206, 94520), (272, 71585), (278, 70040), (340, 57268), (412, 47260), (515, 37808), (556, 35020), (680, 28634), (695, 28016), (824, 23630), (1030, 18904), (1112, 17510), (1360, 14317), (1390, 14008), (1648, 11815), (1751, 11120), (2060, 9452), (2224, 8755), (2363, 8240), (2780, 7004), (3502, 5560), (4120, 4726)]