28021136

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{331}}^1$

素因数の和:400

約数の個数: 80

約数和(自身を含む): 65704128

約数和(自身を除く): 37682992

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 37, 44, 52, 74, 88, 104, 143, 148, 176, 208, 286, 296, 331, 407, 481, 572, 592, 662, 814, 962, 1144, 1324, 1628, 1924, 2288, 2648, 3256, 3641, 3848, 4303, 5291, 5296, 6512, 7282, 7696, 8606, 10582, 12247, 14564, 17212, 21164, 24494, 29128, 34424, 42328, 47333, 48988, 58256, 68848, 84656, 94666, 97976, 134717, 159211, 189332, 195952, 269434, 318422, 378664, 538868, 636844, 757328, 1077736, 1273688, 1751321, 2155472, 2547376, 3502642, 7005284, 14010568, 28021136]

約数ペア:

[(1, 28021136), (2, 14010568), (4, 7005284), (8, 3502642), (11, 2547376), (13, 2155472), (16, 1751321), (22, 1273688), (26, 1077736), (37, 757328), (44, 636844), (52, 538868), (74, 378664), (88, 318422), (104, 269434), (143, 195952), (148, 189332), (176, 159211), (208, 134717), (286, 97976), (296, 94666), (331, 84656), (407, 68848), (481, 58256), (572, 48988), (592, 47333), (662, 42328), (814, 34424), (962, 29128), (1144, 24494), (1324, 21164), (1628, 17212), (1924, 14564), (2288, 12247), (2648, 10582), (3256, 8606), (3641, 7696), (3848, 7282), (4303, 6512), (5291, 5296)]