28357308

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{859}}^1$

素因数の和:1007

約数の個数: 72

約数和(自身を含む): 82642560

約数和(自身を除く): 54285252

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 131, 252, 262, 393, 524, 786, 859, 917, 1179, 1572, 1718, 1834, 2358, 2577, 2751, 3436, 3668, 4716, 5154, 5502, 6013, 7731, 8253, 10308, 11004, 12026, 15462, 16506, 18039, 24052, 30924, 33012, 36078, 54117, 72156, 108234, 112529, 216468, 225058, 337587, 450116, 675174, 787703, 1012761, 1350348, 1575406, 2025522, 2363109, 3150812, 4051044, 4726218, 7089327, 9452436, 14178654, 28357308]

約数ペア:

[(1, 28357308), (2, 14178654), (3, 9452436), (4, 7089327), (6, 4726218), (7, 4051044), (9, 3150812), (12, 2363109), (14, 2025522), (18, 1575406), (21, 1350348), (28, 1012761), (36, 787703), (42, 675174), (63, 450116), (84, 337587), (126, 225058), (131, 216468), (252, 112529), (262, 108234), (393, 72156), (524, 54117), (786, 36078), (859, 33012), (917, 30924), (1179, 24052), (1572, 18039), (1718, 16506), (1834, 15462), (2358, 12026), (2577, 11004), (2751, 10308), (3436, 8253), (3668, 7731), (4716, 6013), (5154, 5502)]