18641584

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:182

約数の個数: 80

約数和(自身を含む): 42184800

約数和(自身を除く): 23543216

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 53, 76, 89, 104, 106, 152, 178, 208, 212, 247, 304, 356, 424, 494, 689, 712, 848, 988, 1007, 1157, 1378, 1424, 1691, 1976, 2014, 2314, 2756, 3382, 3952, 4028, 4628, 4717, 5512, 6764, 8056, 9256, 9434, 11024, 13091, 13528, 16112, 18512, 18868, 21983, 26182, 27056, 37736, 43966, 52364, 61321, 75472, 87932, 89623, 104728, 122642, 175864, 179246, 209456, 245284, 351728, 358492, 490568, 716984, 981136, 1165099, 1433968, 2330198, 4660396, 9320792, 18641584]

約数ペア:

[(1, 18641584), (2, 9320792), (4, 4660396), (8, 2330198), (13, 1433968), (16, 1165099), (19, 981136), (26, 716984), (38, 490568), (52, 358492), (53, 351728), (76, 245284), (89, 209456), (104, 179246), (106, 175864), (152, 122642), (178, 104728), (208, 89623), (212, 87932), (247, 75472), (304, 61321), (356, 52364), (424, 43966), (494, 37736), (689, 27056), (712, 26182), (848, 21983), (988, 18868), (1007, 18512), (1157, 16112), (1378, 13528), (1424, 13091), (1691, 11024), (1976, 9434), (2014, 9256), (2314, 8056), (2756, 6764), (3382, 5512), (3952, 4717), (4028, 4628)]