20218997025

素因数分解:

$3^2\times 5^2\times {\mathrm{67}}^1\times {\mathrm{317}}^1\times {\mathrm{4231}}^1$

素因数の和:4631

約数の個数: 72

約数和(自身を含む): 36879645504

約数和(自身を除く): 16660648479

約数列:

[1, 3, 5, 9, 15, 25, 45, 67, 75, 201, 225, 317, 335, 603, 951, 1005, 1585, 1675, 2853, 3015, 4231, 4755, 5025, 7925, 12693, 14265, 15075, 21155, 21239, 23775, 38079, 63465, 63717, 71325, 105775, 106195, 190395, 191151, 283477, 317325, 318585, 530975, 850431, 951975, 955755, 1341227, 1417385, 1592925, 2551293, 4023681, 4252155, 4778775, 6706135, 7086925, 12071043, 12756465, 20118405, 21260775, 33530675, 60355215, 63782325, 89862209, 100592025, 269586627, 301776075, 449311045, 808759881, 1347933135, 2246555225, 4043799405, 6739665675, 20218997025]

約数ペア:

[(1, 20218997025), (3, 6739665675), (5, 4043799405), (9, 2246555225), (15, 1347933135), (25, 808759881), (45, 449311045), (67, 301776075), (75, 269586627), (201, 100592025), (225, 89862209), (317, 63782325), (335, 60355215), (603, 33530675), (951, 21260775), (1005, 20118405), (1585, 12756465), (1675, 12071043), (2853, 7086925), (3015, 6706135), (4231, 4778775), (4755, 4252155), (5025, 4023681), (7925, 2551293), (12693, 1592925), (14265, 1417385), (15075, 1341227), (21155, 955755), (21239, 951975), (23775, 850431), (38079, 530975), (63465, 318585), (63717, 317325), (71325, 283477), (105775, 191151), (106195, 190395)]