20318532

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{233}}^1$

素因数の和:309

約数の個数: 72

約数和(自身を含む): 52756704

約数和(自身を除く): 32438172

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 43, 52, 78, 86, 129, 156, 169, 172, 233, 258, 338, 466, 507, 516, 559, 676, 699, 932, 1014, 1118, 1398, 1677, 2028, 2236, 2796, 3029, 3354, 6058, 6708, 7267, 9087, 10019, 12116, 14534, 18174, 20038, 21801, 29068, 30057, 36348, 39377, 40076, 43602, 60114, 78754, 87204, 118131, 120228, 130247, 157508, 236262, 260494, 390741, 472524, 520988, 781482, 1562964, 1693211, 3386422, 5079633, 6772844, 10159266, 20318532]

約数ペア:

[(1, 20318532), (2, 10159266), (3, 6772844), (4, 5079633), (6, 3386422), (12, 1693211), (13, 1562964), (26, 781482), (39, 520988), (43, 472524), (52, 390741), (78, 260494), (86, 236262), (129, 157508), (156, 130247), (169, 120228), (172, 118131), (233, 87204), (258, 78754), (338, 60114), (466, 43602), (507, 40076), (516, 39377), (559, 36348), (676, 30057), (699, 29068), (932, 21801), (1014, 20038), (1118, 18174), (1398, 14534), (1677, 12116), (2028, 10019), (2236, 9087), (2796, 7267), (3029, 6708), (3354, 6058)]