18412720

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:202

約数の個数: 80

約数和(自身を含む): 44997120

約数和(自身を除く): 26584400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 59, 80, 83, 94, 118, 166, 188, 235, 236, 295, 332, 376, 415, 470, 472, 590, 664, 752, 830, 940, 944, 1180, 1328, 1660, 1880, 2360, 2773, 3320, 3760, 3901, 4720, 4897, 5546, 6640, 7802, 9794, 11092, 13865, 15604, 19505, 19588, 22184, 24485, 27730, 31208, 39010, 39176, 44368, 48970, 55460, 62416, 78020, 78352, 97940, 110920, 156040, 195880, 221840, 230159, 312080, 391760, 460318, 920636, 1150795, 1841272, 2301590, 3682544, 4603180, 9206360, 18412720]

約数ペア:

[(1, 18412720), (2, 9206360), (4, 4603180), (5, 3682544), (8, 2301590), (10, 1841272), (16, 1150795), (20, 920636), (40, 460318), (47, 391760), (59, 312080), (80, 230159), (83, 221840), (94, 195880), (118, 156040), (166, 110920), (188, 97940), (235, 78352), (236, 78020), (295, 62416), (332, 55460), (376, 48970), (415, 44368), (470, 39176), (472, 39010), (590, 31208), (664, 27730), (752, 24485), (830, 22184), (940, 19588), (944, 19505), (1180, 15604), (1328, 13865), (1660, 11092), (1880, 9794), (2360, 7802), (2773, 6640), (3320, 5546), (3760, 4897), (3901, 4720)]