81545380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:269

約数の個数: 96

約数和(自身を含む): 202890240

約数和(自身を除く): 121344860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 79, 101, 140, 146, 158, 202, 292, 316, 365, 395, 404, 505, 511, 553, 707, 730, 790, 1010, 1022, 1106, 1414, 1460, 1580, 2020, 2044, 2212, 2555, 2765, 2828, 3535, 5110, 5530, 5767, 7070, 7373, 7979, 10220, 11060, 11534, 14140, 14746, 15958, 23068, 28835, 29492, 31916, 36865, 39895, 40369, 51611, 55853, 57670, 73730, 79790, 80738, 103222, 111706, 115340, 147460, 159580, 161476, 201845, 206444, 223412, 258055, 279265, 403690, 516110, 558530, 582467, 807380, 1032220, 1117060, 1164934, 2329868, 2912335, 4077269, 5824670, 8154538, 11649340, 16309076, 20386345, 40772690, 81545380]

約数ペア:

[(1, 81545380), (2, 40772690), (4, 20386345), (5, 16309076), (7, 11649340), (10, 8154538), (14, 5824670), (20, 4077269), (28, 2912335), (35, 2329868), (70, 1164934), (73, 1117060), (79, 1032220), (101, 807380), (140, 582467), (146, 558530), (158, 516110), (202, 403690), (292, 279265), (316, 258055), (365, 223412), (395, 206444), (404, 201845), (505, 161476), (511, 159580), (553, 147460), (707, 115340), (730, 111706), (790, 103222), (1010, 80738), (1022, 79790), (1106, 73730), (1414, 57670), (1460, 55853), (1580, 51611), (2020, 40369), (2044, 39895), (2212, 36865), (2555, 31916), (2765, 29492), (2828, 28835), (3535, 23068), (5110, 15958), (5530, 14746), (5767, 14140), (7070, 11534), (7373, 11060), (7979, 10220)]