20458008

素因数分解:

$2^3\times 3^4\times {\mathrm{131}}^1\times {\mathrm{241}}^1$

素因数の和:390

約数の個数: 80

約数和(自身を含む): 57978360

約数和(自身を除く): 37520352

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 131, 162, 216, 241, 262, 324, 393, 482, 524, 648, 723, 786, 964, 1048, 1179, 1446, 1572, 1928, 2169, 2358, 2892, 3144, 3537, 4338, 4716, 5784, 6507, 7074, 8676, 9432, 10611, 13014, 14148, 17352, 19521, 21222, 26028, 28296, 31571, 39042, 42444, 52056, 63142, 78084, 84888, 94713, 126284, 156168, 189426, 252568, 284139, 378852, 568278, 757704, 852417, 1136556, 1704834, 2273112, 2557251, 3409668, 5114502, 6819336, 10229004, 20458008]

約数ペア:

[(1, 20458008), (2, 10229004), (3, 6819336), (4, 5114502), (6, 3409668), (8, 2557251), (9, 2273112), (12, 1704834), (18, 1136556), (24, 852417), (27, 757704), (36, 568278), (54, 378852), (72, 284139), (81, 252568), (108, 189426), (131, 156168), (162, 126284), (216, 94713), (241, 84888), (262, 78084), (324, 63142), (393, 52056), (482, 42444), (524, 39042), (648, 31571), (723, 28296), (786, 26028), (964, 21222), (1048, 19521), (1179, 17352), (1446, 14148), (1572, 13014), (1928, 10611), (2169, 9432), (2358, 8676), (2892, 7074), (3144, 6507), (3537, 5784), (4338, 4716)]