28292628

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1993}}^1$

素因数の和:2033

約数の個数: 72

約数和(自身を含む): 81738048

約数和(自身を除く): 53445420

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 156, 169, 182, 273, 338, 364, 507, 546, 676, 1014, 1092, 1183, 1993, 2028, 2366, 3549, 3986, 4732, 5979, 7098, 7972, 11958, 13951, 14196, 23916, 25909, 27902, 41853, 51818, 55804, 77727, 83706, 103636, 155454, 167412, 181363, 310908, 336817, 362726, 544089, 673634, 725452, 1010451, 1088178, 1347268, 2020902, 2176356, 2357719, 4041804, 4715438, 7073157, 9430876, 14146314, 28292628]

約数ペア:

[(1, 28292628), (2, 14146314), (3, 9430876), (4, 7073157), (6, 4715438), (7, 4041804), (12, 2357719), (13, 2176356), (14, 2020902), (21, 1347268), (26, 1088178), (28, 1010451), (39, 725452), (42, 673634), (52, 544089), (78, 362726), (84, 336817), (91, 310908), (156, 181363), (169, 167412), (182, 155454), (273, 103636), (338, 83706), (364, 77727), (507, 55804), (546, 51818), (676, 41853), (1014, 27902), (1092, 25909), (1183, 23916), (1993, 14196), (2028, 13951), (2366, 11958), (3549, 7972), (3986, 7098), (4732, 5979)]