20278016

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{379}}^1$

素因数の和:425

約数の個数: 72

約数和(自身を含む): 46603200

約数和(自身を除く): 26325184

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 44, 64, 76, 88, 128, 152, 176, 209, 256, 304, 352, 379, 418, 608, 704, 758, 836, 1216, 1408, 1516, 1672, 2432, 2816, 3032, 3344, 4169, 4864, 6064, 6688, 7201, 8338, 12128, 13376, 14402, 16676, 24256, 26752, 28804, 33352, 48512, 53504, 57608, 66704, 79211, 97024, 115216, 133408, 158422, 230432, 266816, 316844, 460864, 533632, 633688, 921728, 1067264, 1267376, 1843456, 2534752, 5069504, 10139008, 20278016]

約数ペア:

[(1, 20278016), (2, 10139008), (4, 5069504), (8, 2534752), (11, 1843456), (16, 1267376), (19, 1067264), (22, 921728), (32, 633688), (38, 533632), (44, 460864), (64, 316844), (76, 266816), (88, 230432), (128, 158422), (152, 133408), (176, 115216), (209, 97024), (256, 79211), (304, 66704), (352, 57608), (379, 53504), (418, 48512), (608, 33352), (704, 28804), (758, 26752), (836, 24256), (1216, 16676), (1408, 14402), (1516, 13376), (1672, 12128), (2432, 8338), (2816, 7201), (3032, 6688), (3344, 6064), (4169, 4864)]