20453940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8741}}^1$

素因数の和:8769

約数の個数: 72

約数和(自身を含む): 66823848

約数和(自身を除く): 46369908

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 8741, 17482, 26223, 34964, 43705, 52446, 78669, 87410, 104892, 113633, 131115, 157338, 174820, 227266, 262230, 314676, 340899, 393345, 454532, 524460, 568165, 681798, 786690, 1022697, 1136330, 1363596, 1573380, 1704495, 2045394, 2272660, 3408990, 4090788, 5113485, 6817980, 10226970, 20453940]

約数ペア:

[(1, 20453940), (2, 10226970), (3, 6817980), (4, 5113485), (5, 4090788), (6, 3408990), (9, 2272660), (10, 2045394), (12, 1704495), (13, 1573380), (15, 1363596), (18, 1136330), (20, 1022697), (26, 786690), (30, 681798), (36, 568165), (39, 524460), (45, 454532), (52, 393345), (60, 340899), (65, 314676), (78, 262230), (90, 227266), (117, 174820), (130, 157338), (156, 131115), (180, 113633), (195, 104892), (234, 87410), (260, 78669), (390, 52446), (468, 43705), (585, 34964), (780, 26223), (1170, 17482), (2340, 8741)]