640145124

素因数分解:

$2^2\times 3^2\times {\mathrm{131}}^1\times {\mathrm{149}}^1\times {\mathrm{911}}^1$

素因数の和:1201

約数の個数: 72

約数和(自身を含む): 1643241600

約数和(自身を除く): 1003096476

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 131, 149, 262, 298, 393, 447, 524, 596, 786, 894, 911, 1179, 1341, 1572, 1788, 1822, 2358, 2682, 2733, 3644, 4716, 5364, 5466, 8199, 10932, 16398, 19519, 32796, 39038, 58557, 78076, 117114, 119341, 135739, 175671, 234228, 238682, 271478, 351342, 358023, 407217, 477364, 542956, 702684, 716046, 814434, 1074069, 1221651, 1432092, 1628868, 2148138, 2443302, 4296276, 4886604, 17781809, 35563618, 53345427, 71127236, 106690854, 160036281, 213381708, 320072562, 640145124]

約数ペア:

[(1, 640145124), (2, 320072562), (3, 213381708), (4, 160036281), (6, 106690854), (9, 71127236), (12, 53345427), (18, 35563618), (36, 17781809), (131, 4886604), (149, 4296276), (262, 2443302), (298, 2148138), (393, 1628868), (447, 1432092), (524, 1221651), (596, 1074069), (786, 814434), (894, 716046), (911, 702684), (1179, 542956), (1341, 477364), (1572, 407217), (1788, 358023), (1822, 351342), (2358, 271478), (2682, 238682), (2733, 234228), (3644, 175671), (4716, 135739), (5364, 119341), (5466, 117114), (8199, 78076), (10932, 58557), (16398, 39038), (19519, 32796)]