217382830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1\times {\mathrm{229}}^1$

素因数の和:505

約数の個数: 64

約数和(自身を含む): 457850880

約数和(自身を除く): 240468050

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 142, 191, 229, 355, 382, 458, 497, 710, 955, 994, 1145, 1337, 1603, 1910, 2290, 2485, 2674, 3206, 4970, 6685, 8015, 13370, 13561, 16030, 16259, 27122, 32518, 43739, 67805, 81295, 87478, 94927, 113813, 135610, 162590, 189854, 218695, 227626, 306173, 437390, 474635, 569065, 612346, 949270, 1138130, 1530865, 3061730, 3105469, 6210938, 15527345, 21738283, 31054690, 43476566, 108691415, 217382830]

約数ペア:

[(1, 217382830), (2, 108691415), (5, 43476566), (7, 31054690), (10, 21738283), (14, 15527345), (35, 6210938), (70, 3105469), (71, 3061730), (142, 1530865), (191, 1138130), (229, 949270), (355, 612346), (382, 569065), (458, 474635), (497, 437390), (710, 306173), (955, 227626), (994, 218695), (1145, 189854), (1337, 162590), (1603, 135610), (1910, 113813), (2290, 94927), (2485, 87478), (2674, 81295), (3206, 67805), (4970, 43739), (6685, 32518), (8015, 27122), (13370, 16259), (13561, 16030)]