81374860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1$

素因数の和:295

約数の個数: 96

約数和(自身を含む): 203212800

約数和(自身を除く): 121837940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 83, 94, 140, 149, 166, 188, 235, 298, 329, 332, 415, 470, 581, 596, 658, 745, 830, 940, 1043, 1162, 1316, 1490, 1645, 1660, 2086, 2324, 2905, 2980, 3290, 3901, 4172, 5215, 5810, 6580, 7003, 7802, 10430, 11620, 12367, 14006, 15604, 19505, 20860, 24734, 27307, 28012, 35015, 39010, 49021, 49468, 54614, 61835, 70030, 78020, 86569, 98042, 109228, 123670, 136535, 140060, 173138, 196084, 245105, 247340, 273070, 346276, 432845, 490210, 546140, 581249, 865690, 980420, 1162498, 1731380, 2324996, 2906245, 4068743, 5812490, 8137486, 11624980, 16274972, 20343715, 40687430, 81374860]

約数ペア:

[(1, 81374860), (2, 40687430), (4, 20343715), (5, 16274972), (7, 11624980), (10, 8137486), (14, 5812490), (20, 4068743), (28, 2906245), (35, 2324996), (47, 1731380), (70, 1162498), (83, 980420), (94, 865690), (140, 581249), (149, 546140), (166, 490210), (188, 432845), (235, 346276), (298, 273070), (329, 247340), (332, 245105), (415, 196084), (470, 173138), (581, 140060), (596, 136535), (658, 123670), (745, 109228), (830, 98042), (940, 86569), (1043, 78020), (1162, 70030), (1316, 61835), (1490, 54614), (1645, 49468), (1660, 49021), (2086, 39010), (2324, 35015), (2905, 28012), (2980, 27307), (3290, 24734), (3901, 20860), (4172, 19505), (5215, 15604), (5810, 14006), (6580, 12367), (7003, 11620), (7802, 10430)]