20668644

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{263}}^1$

素因数の和:369

約数の個数: 72

約数和(自身を含む): 54774720

約数和(自身を除く): 34106076

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 59, 74, 111, 118, 148, 177, 222, 236, 263, 333, 354, 444, 526, 531, 666, 708, 789, 1052, 1062, 1332, 1578, 2124, 2183, 2367, 3156, 4366, 4734, 6549, 8732, 9468, 9731, 13098, 15517, 19462, 19647, 26196, 29193, 31034, 38924, 39294, 46551, 58386, 62068, 78588, 87579, 93102, 116772, 139653, 175158, 186204, 279306, 350316, 558612, 574129, 1148258, 1722387, 2296516, 3444774, 5167161, 6889548, 10334322, 20668644]

約数ペア:

[(1, 20668644), (2, 10334322), (3, 6889548), (4, 5167161), (6, 3444774), (9, 2296516), (12, 1722387), (18, 1148258), (36, 574129), (37, 558612), (59, 350316), (74, 279306), (111, 186204), (118, 175158), (148, 139653), (177, 116772), (222, 93102), (236, 87579), (263, 78588), (333, 62068), (354, 58386), (444, 46551), (526, 39294), (531, 38924), (666, 31034), (708, 29193), (789, 26196), (1052, 19647), (1062, 19462), (1332, 15517), (1578, 13098), (2124, 9731), (2183, 9468), (2367, 8732), (3156, 6549), (4366, 4734)]