650133860

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{6679}}^1$

素因数の和:6876

約数の個数: 48

約数和(自身を含む): 1418511360

約数和(自身を除く): 768377500

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 157, 310, 314, 620, 628, 785, 1570, 3140, 4867, 6679, 9734, 13358, 19468, 24335, 26716, 33395, 48670, 66790, 97340, 133580, 207049, 414098, 828196, 1035245, 1048603, 2070490, 2097206, 4140980, 4194412, 5243015, 10486030, 20972060, 32506693, 65013386, 130026772, 162533465, 325066930, 650133860]

約数ペア:

[(1, 650133860), (2, 325066930), (4, 162533465), (5, 130026772), (10, 65013386), (20, 32506693), (31, 20972060), (62, 10486030), (124, 5243015), (155, 4194412), (157, 4140980), (310, 2097206), (314, 2070490), (620, 1048603), (628, 1035245), (785, 828196), (1570, 414098), (3140, 207049), (4867, 133580), (6679, 97340), (9734, 66790), (13358, 48670), (19468, 33395), (24335, 26716)]