55511720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1597}}^1$

素因数の和:1698

約数の個数: 64

約数和(自身を含む): 138067200

約数和(自身を除く): 82555480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 79, 88, 110, 158, 220, 316, 395, 440, 632, 790, 869, 1580, 1597, 1738, 3160, 3194, 3476, 4345, 6388, 6952, 7985, 8690, 12776, 15970, 17380, 17567, 31940, 34760, 35134, 63880, 70268, 87835, 126163, 140536, 175670, 252326, 351340, 504652, 630815, 702680, 1009304, 1261630, 1387793, 2523260, 2775586, 5046520, 5551172, 6938965, 11102344, 13877930, 27755860, 55511720]

約数ペア:

[(1, 55511720), (2, 27755860), (4, 13877930), (5, 11102344), (8, 6938965), (10, 5551172), (11, 5046520), (20, 2775586), (22, 2523260), (40, 1387793), (44, 1261630), (55, 1009304), (79, 702680), (88, 630815), (110, 504652), (158, 351340), (220, 252326), (316, 175670), (395, 140536), (440, 126163), (632, 87835), (790, 70268), (869, 63880), (1580, 35134), (1597, 34760), (1738, 31940), (3160, 17567), (3194, 17380), (3476, 15970), (4345, 12776), (6388, 8690), (6952, 7985)]