445640440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{397}}^1$

素因数の和:645

約数の個数: 128

約数和(自身を含む): 1215014400

約数和(自身を除く): 769373960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 211, 266, 280, 380, 397, 422, 532, 665, 760, 794, 844, 1055, 1064, 1330, 1477, 1588, 1688, 1985, 2110, 2660, 2779, 2954, 3176, 3970, 4009, 4220, 5320, 5558, 5908, 7385, 7543, 7940, 8018, 8440, 11116, 11816, 13895, 14770, 15086, 15880, 16036, 20045, 22232, 27790, 28063, 29540, 30172, 32072, 37715, 40090, 52801, 55580, 56126, 59080, 60344, 75430, 80180, 83767, 105602, 111160, 112252, 140315, 150860, 160360, 167534, 211204, 224504, 264005, 280630, 301720, 335068, 418835, 422408, 528010, 561260, 586369, 670136, 837670, 1056020, 1122520, 1172738, 1591573, 1675340, 2112040, 2345476, 2931845, 3183146, 3350680, 4690952, 5863690, 6366292, 7957865, 11141011, 11727380, 12732584, 15915730, 22282022, 23454760, 31831460, 44564044, 55705055, 63662920, 89128088, 111410110, 222820220, 445640440]

約数ペア:

[(1, 445640440), (2, 222820220), (4, 111410110), (5, 89128088), (7, 63662920), (8, 55705055), (10, 44564044), (14, 31831460), (19, 23454760), (20, 22282022), (28, 15915730), (35, 12732584), (38, 11727380), (40, 11141011), (56, 7957865), (70, 6366292), (76, 5863690), (95, 4690952), (133, 3350680), (140, 3183146), (152, 2931845), (190, 2345476), (211, 2112040), (266, 1675340), (280, 1591573), (380, 1172738), (397, 1122520), (422, 1056020), (532, 837670), (665, 670136), (760, 586369), (794, 561260), (844, 528010), (1055, 422408), (1064, 418835), (1330, 335068), (1477, 301720), (1588, 280630), (1688, 264005), (1985, 224504), (2110, 211204), (2660, 167534), (2779, 160360), (2954, 150860), (3176, 140315), (3970, 112252), (4009, 111160), (4220, 105602), (5320, 83767), (5558, 80180), (5908, 75430), (7385, 60344), (7543, 59080), (7940, 56126), (8018, 55580), (8440, 52801), (11116, 40090), (11816, 37715), (13895, 32072), (14770, 30172), (15086, 29540), (15880, 28063), (16036, 27790), (20045, 22232)]