81283160

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{367}}^1$

素因数の和:505

約数の個数: 96

約数和(自身を含む): 215213760

約数和(自身を除く): 133930600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 113, 140, 196, 226, 245, 280, 367, 392, 452, 490, 565, 734, 791, 904, 980, 1130, 1468, 1582, 1835, 1960, 2260, 2569, 2936, 3164, 3670, 3955, 4520, 5138, 5537, 6328, 7340, 7910, 10276, 11074, 12845, 14680, 15820, 17983, 20552, 22148, 25690, 27685, 31640, 35966, 41471, 44296, 51380, 55370, 71932, 82942, 89915, 102760, 110740, 143864, 165884, 179830, 207355, 221480, 290297, 331768, 359660, 414710, 580594, 719320, 829420, 1161188, 1451485, 1658840, 2032079, 2322376, 2902970, 4064158, 5805940, 8128316, 10160395, 11611880, 16256632, 20320790, 40641580, 81283160]

約数ペア:

[(1, 81283160), (2, 40641580), (4, 20320790), (5, 16256632), (7, 11611880), (8, 10160395), (10, 8128316), (14, 5805940), (20, 4064158), (28, 2902970), (35, 2322376), (40, 2032079), (49, 1658840), (56, 1451485), (70, 1161188), (98, 829420), (113, 719320), (140, 580594), (196, 414710), (226, 359660), (245, 331768), (280, 290297), (367, 221480), (392, 207355), (452, 179830), (490, 165884), (565, 143864), (734, 110740), (791, 102760), (904, 89915), (980, 82942), (1130, 71932), (1468, 55370), (1582, 51380), (1835, 44296), (1960, 41471), (2260, 35966), (2569, 31640), (2936, 27685), (3164, 25690), (3670, 22148), (3955, 20552), (4520, 17983), (5138, 15820), (5537, 14680), (6328, 12845), (7340, 11074), (7910, 10276)]