20740356

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{487}}^1$

素因数の和:530

約数の個数: 108

約数和(自身を含む): 65013312

約数和(自身を除く): 44272956

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 52, 63, 78, 84, 91, 117, 126, 156, 169, 182, 234, 252, 273, 338, 364, 468, 487, 507, 546, 676, 819, 974, 1014, 1092, 1183, 1461, 1521, 1638, 1948, 2028, 2366, 2922, 3042, 3276, 3409, 3549, 4383, 4732, 5844, 6084, 6331, 6818, 7098, 8766, 10227, 10647, 12662, 13636, 14196, 17532, 18993, 20454, 21294, 25324, 30681, 37986, 40908, 42588, 44317, 56979, 61362, 75972, 82303, 88634, 113958, 122724, 132951, 164606, 177268, 227916, 246909, 265902, 329212, 398853, 493818, 531804, 576121, 740727, 797706, 987636, 1152242, 1481454, 1595412, 1728363, 2304484, 2962908, 3456726, 5185089, 6913452, 10370178, 20740356]

約数ペア:

[(1, 20740356), (2, 10370178), (3, 6913452), (4, 5185089), (6, 3456726), (7, 2962908), (9, 2304484), (12, 1728363), (13, 1595412), (14, 1481454), (18, 1152242), (21, 987636), (26, 797706), (28, 740727), (36, 576121), (39, 531804), (42, 493818), (52, 398853), (63, 329212), (78, 265902), (84, 246909), (91, 227916), (117, 177268), (126, 164606), (156, 132951), (169, 122724), (182, 113958), (234, 88634), (252, 82303), (273, 75972), (338, 61362), (364, 56979), (468, 44317), (487, 42588), (507, 40908), (546, 37986), (676, 30681), (819, 25324), (974, 21294), (1014, 20454), (1092, 18993), (1183, 17532), (1461, 14196), (1521, 13636), (1638, 12662), (1948, 10647), (2028, 10227), (2366, 8766), (2922, 7098), (3042, 6818), (3276, 6331), (3409, 6084), (3549, 5844), (4383, 4732)]