278840358

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{331}}^1\times {\mathrm{2753}}^1$

素因数の和:3109

約数の個数: 48

約数和(自身を含む): 641858256

約数和(自身を除く): 363017898

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 306, 331, 662, 993, 1986, 2753, 2979, 5506, 5627, 5958, 8259, 11254, 16518, 16881, 24777, 33762, 46801, 49554, 50643, 93602, 101286, 140403, 280806, 421209, 842418, 911243, 1822486, 2733729, 5467458, 8201187, 15491131, 16402374, 30982262, 46473393, 92946786, 139420179, 278840358]

約数ペア:

[(1, 278840358), (2, 139420179), (3, 92946786), (6, 46473393), (9, 30982262), (17, 16402374), (18, 15491131), (34, 8201187), (51, 5467458), (102, 2733729), (153, 1822486), (306, 911243), (331, 842418), (662, 421209), (993, 280806), (1986, 140403), (2753, 101286), (2979, 93602), (5506, 50643), (5627, 49554), (5958, 46801), (8259, 33762), (11254, 24777), (16518, 16881)]