18402760

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{241}}^1$

素因数の和:358

約数の個数: 64

約数和(自身を含む): 43908480

約数和(自身を除く): 25505720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 83, 92, 115, 166, 184, 230, 241, 332, 415, 460, 482, 664, 830, 920, 964, 1205, 1660, 1909, 1928, 2410, 3320, 3818, 4820, 5543, 7636, 9545, 9640, 11086, 15272, 19090, 20003, 22172, 27715, 38180, 40006, 44344, 55430, 76360, 80012, 100015, 110860, 160024, 200030, 221720, 400060, 460069, 800120, 920138, 1840276, 2300345, 3680552, 4600690, 9201380, 18402760]

約数ペア:

[(1, 18402760), (2, 9201380), (4, 4600690), (5, 3680552), (8, 2300345), (10, 1840276), (20, 920138), (23, 800120), (40, 460069), (46, 400060), (83, 221720), (92, 200030), (115, 160024), (166, 110860), (184, 100015), (230, 80012), (241, 76360), (332, 55430), (415, 44344), (460, 40006), (482, 38180), (664, 27715), (830, 22172), (920, 20003), (964, 19090), (1205, 15272), (1660, 11086), (1909, 9640), (1928, 9545), (2410, 7636), (3320, 5543), (3818, 4820)]