28722120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1103}}^1$

素因数の和:1155

約数の個数: 128

約数和(自身を含む): 101744640

約数和(自身を除く): 73022520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 93, 105, 120, 124, 140, 155, 168, 186, 210, 217, 248, 280, 310, 372, 420, 434, 465, 620, 651, 744, 840, 868, 930, 1085, 1103, 1240, 1302, 1736, 1860, 2170, 2206, 2604, 3255, 3309, 3720, 4340, 4412, 5208, 5515, 6510, 6618, 7721, 8680, 8824, 11030, 13020, 13236, 15442, 16545, 22060, 23163, 26040, 26472, 30884, 33090, 34193, 38605, 44120, 46326, 61768, 66180, 68386, 77210, 92652, 102579, 115815, 132360, 136772, 154420, 170965, 185304, 205158, 231630, 239351, 273544, 308840, 341930, 410316, 463260, 478702, 512895, 683860, 718053, 820632, 926520, 957404, 1025790, 1196755, 1367720, 1436106, 1914808, 2051580, 2393510, 2872212, 3590265, 4103160, 4787020, 5744424, 7180530, 9574040, 14361060, 28722120]

約数ペア:

[(1, 28722120), (2, 14361060), (3, 9574040), (4, 7180530), (5, 5744424), (6, 4787020), (7, 4103160), (8, 3590265), (10, 2872212), (12, 2393510), (14, 2051580), (15, 1914808), (20, 1436106), (21, 1367720), (24, 1196755), (28, 1025790), (30, 957404), (31, 926520), (35, 820632), (40, 718053), (42, 683860), (56, 512895), (60, 478702), (62, 463260), (70, 410316), (84, 341930), (93, 308840), (105, 273544), (120, 239351), (124, 231630), (140, 205158), (155, 185304), (168, 170965), (186, 154420), (210, 136772), (217, 132360), (248, 115815), (280, 102579), (310, 92652), (372, 77210), (420, 68386), (434, 66180), (465, 61768), (620, 46326), (651, 44120), (744, 38605), (840, 34193), (868, 33090), (930, 30884), (1085, 26472), (1103, 26040), (1240, 23163), (1302, 22060), (1736, 16545), (1860, 15442), (2170, 13236), (2206, 13020), (2604, 11030), (3255, 8824), (3309, 8680), (3720, 7721), (4340, 6618), (4412, 6510), (5208, 5515)]