400896580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{5197}}^1$

素因数の和:5261

約数の個数: 96

約数和(自身を含む): 1047916800

約数和(自身を除く): 647020220

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 29, 35, 38, 58, 70, 76, 95, 116, 133, 140, 145, 190, 203, 266, 290, 380, 406, 532, 551, 580, 665, 812, 1015, 1102, 1330, 2030, 2204, 2660, 2755, 3857, 4060, 5197, 5510, 7714, 10394, 11020, 15428, 19285, 20788, 25985, 36379, 38570, 51970, 72758, 77140, 98743, 103940, 145516, 150713, 181895, 197486, 301426, 363790, 394972, 493715, 602852, 691201, 727580, 753565, 987430, 1054991, 1382402, 1507130, 1974860, 2109982, 2764804, 2863547, 3014260, 3456005, 4219964, 5274955, 5727094, 6912010, 10549910, 11454188, 13824020, 14317735, 20044829, 21099820, 28635470, 40089658, 57270940, 80179316, 100224145, 200448290, 400896580]

約数ペア:

[(1, 400896580), (2, 200448290), (4, 100224145), (5, 80179316), (7, 57270940), (10, 40089658), (14, 28635470), (19, 21099820), (20, 20044829), (28, 14317735), (29, 13824020), (35, 11454188), (38, 10549910), (58, 6912010), (70, 5727094), (76, 5274955), (95, 4219964), (116, 3456005), (133, 3014260), (140, 2863547), (145, 2764804), (190, 2109982), (203, 1974860), (266, 1507130), (290, 1382402), (380, 1054991), (406, 987430), (532, 753565), (551, 727580), (580, 691201), (665, 602852), (812, 493715), (1015, 394972), (1102, 363790), (1330, 301426), (2030, 197486), (2204, 181895), (2660, 150713), (2755, 145516), (3857, 103940), (4060, 98743), (5197, 77140), (5510, 72758), (7714, 51970), (10394, 38570), (11020, 36379), (15428, 25985), (19285, 20788)]