20980584

素因数分解:

$2^3\times 3^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{281}}^1$

素因数の和:371

約数の個数: 96

約数和(自身を含む): 61368840

約数和(自身を除く): 40388256

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 24, 34, 36, 51, 61, 68, 72, 102, 122, 136, 153, 183, 204, 244, 281, 306, 366, 408, 488, 549, 562, 612, 732, 843, 1037, 1098, 1124, 1224, 1464, 1686, 2074, 2196, 2248, 2529, 3111, 3372, 4148, 4392, 4777, 5058, 6222, 6744, 8296, 9333, 9554, 10116, 12444, 14331, 17141, 18666, 19108, 20232, 24888, 28662, 34282, 37332, 38216, 42993, 51423, 57324, 68564, 74664, 85986, 102846, 114648, 137128, 154269, 171972, 205692, 291397, 308538, 343944, 411384, 582794, 617076, 874191, 1165588, 1234152, 1748382, 2331176, 2622573, 3496764, 5245146, 6993528, 10490292, 20980584]

約数ペア:

[(1, 20980584), (2, 10490292), (3, 6993528), (4, 5245146), (6, 3496764), (8, 2622573), (9, 2331176), (12, 1748382), (17, 1234152), (18, 1165588), (24, 874191), (34, 617076), (36, 582794), (51, 411384), (61, 343944), (68, 308538), (72, 291397), (102, 205692), (122, 171972), (136, 154269), (153, 137128), (183, 114648), (204, 102846), (244, 85986), (281, 74664), (306, 68564), (366, 57324), (408, 51423), (488, 42993), (549, 38216), (562, 37332), (612, 34282), (732, 28662), (843, 24888), (1037, 20232), (1098, 19108), (1124, 18666), (1224, 17141), (1464, 14331), (1686, 12444), (2074, 10116), (2196, 9554), (2248, 9333), (2529, 8296), (3111, 6744), (3372, 6222), (4148, 5058), (4392, 4777)]