18817760

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:220

約数の個数: 96

約数和(自身を含む): 48898080

約数和(自身を除く): 30080320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 83, 104, 109, 130, 160, 166, 208, 218, 260, 332, 415, 416, 436, 520, 545, 664, 830, 872, 1040, 1079, 1090, 1328, 1417, 1660, 1744, 2080, 2158, 2180, 2656, 2834, 3320, 3488, 4316, 4360, 5395, 5668, 6640, 7085, 8632, 8720, 9047, 10790, 11336, 13280, 14170, 17264, 17440, 18094, 21580, 22672, 28340, 34528, 36188, 43160, 45235, 45344, 56680, 72376, 86320, 90470, 113360, 117611, 144752, 172640, 180940, 226720, 235222, 289504, 361880, 470444, 588055, 723760, 940888, 1176110, 1447520, 1881776, 2352220, 3763552, 4704440, 9408880, 18817760]

約数ペア:

[(1, 18817760), (2, 9408880), (4, 4704440), (5, 3763552), (8, 2352220), (10, 1881776), (13, 1447520), (16, 1176110), (20, 940888), (26, 723760), (32, 588055), (40, 470444), (52, 361880), (65, 289504), (80, 235222), (83, 226720), (104, 180940), (109, 172640), (130, 144752), (160, 117611), (166, 113360), (208, 90470), (218, 86320), (260, 72376), (332, 56680), (415, 45344), (416, 45235), (436, 43160), (520, 36188), (545, 34528), (664, 28340), (830, 22672), (872, 21580), (1040, 18094), (1079, 17440), (1090, 17264), (1328, 14170), (1417, 13280), (1660, 11336), (1744, 10790), (2080, 9047), (2158, 8720), (2180, 8632), (2656, 7085), (2834, 6640), (3320, 5668), (3488, 5395), (4316, 4360)]