266702980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{3079}}^1$

素因数の和:3220

約数の個数: 48

約数和(自身を含む): 577463040

約数和(自身を除く): 310760060

約数列:

[1, 2, 4, 5, 10, 20, 61, 71, 122, 142, 244, 284, 305, 355, 610, 710, 1220, 1420, 3079, 4331, 6158, 8662, 12316, 15395, 17324, 21655, 30790, 43310, 61580, 86620, 187819, 218609, 375638, 437218, 751276, 874436, 939095, 1093045, 1878190, 2186090, 3756380, 4372180, 13335149, 26670298, 53340596, 66675745, 133351490, 266702980]

約数ペア:

[(1, 266702980), (2, 133351490), (4, 66675745), (5, 53340596), (10, 26670298), (20, 13335149), (61, 4372180), (71, 3756380), (122, 2186090), (142, 1878190), (244, 1093045), (284, 939095), (305, 874436), (355, 751276), (610, 437218), (710, 375638), (1220, 218609), (1420, 187819), (3079, 86620), (4331, 61580), (6158, 43310), (8662, 30790), (12316, 21655), (15395, 17324)]