217490140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53569}}^1$

素因数の和:53614

約数の個数: 48

約数和(自身を含む): 539985600

約数和(自身を除く): 322495460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 53569, 107138, 214276, 267845, 374983, 535690, 749966, 1071380, 1499932, 1553501, 1874915, 3107002, 3749830, 6214004, 7499660, 7767505, 10874507, 15535010, 21749014, 31070020, 43498028, 54372535, 108745070, 217490140]

約数ペア:

[(1, 217490140), (2, 108745070), (4, 54372535), (5, 43498028), (7, 31070020), (10, 21749014), (14, 15535010), (20, 10874507), (28, 7767505), (29, 7499660), (35, 6214004), (58, 3749830), (70, 3107002), (116, 1874915), (140, 1553501), (145, 1499932), (203, 1071380), (290, 749966), (406, 535690), (580, 374983), (812, 267845), (1015, 214276), (2030, 107138), (4060, 53569)]