81942560

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3181}}^1$

素因数の和:3226

約数の個数: 96

約数和(自身を含む): 230936832

約数和(自身を除く): 148994272

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 160, 161, 184, 224, 230, 280, 322, 368, 460, 560, 644, 736, 805, 920, 1120, 1288, 1610, 1840, 2576, 3181, 3220, 3680, 5152, 6362, 6440, 12724, 12880, 15905, 22267, 25448, 25760, 31810, 44534, 50896, 63620, 73163, 89068, 101792, 111335, 127240, 146326, 178136, 222670, 254480, 292652, 356272, 365815, 445340, 508960, 512141, 585304, 712544, 731630, 890680, 1024282, 1170608, 1463260, 1781360, 2048564, 2341216, 2560705, 2926520, 3562720, 4097128, 5121410, 5853040, 8194256, 10242820, 11706080, 16388512, 20485640, 40971280, 81942560]

約数ペア:

[(1, 81942560), (2, 40971280), (4, 20485640), (5, 16388512), (7, 11706080), (8, 10242820), (10, 8194256), (14, 5853040), (16, 5121410), (20, 4097128), (23, 3562720), (28, 2926520), (32, 2560705), (35, 2341216), (40, 2048564), (46, 1781360), (56, 1463260), (70, 1170608), (80, 1024282), (92, 890680), (112, 731630), (115, 712544), (140, 585304), (160, 512141), (161, 508960), (184, 445340), (224, 365815), (230, 356272), (280, 292652), (322, 254480), (368, 222670), (460, 178136), (560, 146326), (644, 127240), (736, 111335), (805, 101792), (920, 89068), (1120, 73163), (1288, 63620), (1610, 50896), (1840, 44534), (2576, 31810), (3181, 25760), (3220, 25448), (3680, 22267), (5152, 15905), (6362, 12880), (6440, 12724)]