27984220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{971}}^1$

素因数の和:1122

約数の個数: 48

約数和(自身を含む): 64665216

約数和(自身を除く): 36680996

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 131, 220, 262, 524, 655, 971, 1310, 1441, 1942, 2620, 2882, 3884, 4855, 5764, 7205, 9710, 10681, 14410, 19420, 21362, 28820, 42724, 53405, 106810, 127201, 213620, 254402, 508804, 636005, 1272010, 1399211, 2544020, 2798422, 5596844, 6996055, 13992110, 27984220]

約数ペア:

[(1, 27984220), (2, 13992110), (4, 6996055), (5, 5596844), (10, 2798422), (11, 2544020), (20, 1399211), (22, 1272010), (44, 636005), (55, 508804), (110, 254402), (131, 213620), (220, 127201), (262, 106810), (524, 53405), (655, 42724), (971, 28820), (1310, 21362), (1441, 19420), (1942, 14410), (2620, 10681), (2882, 9710), (3884, 7205), (4855, 5764)]