81797716

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{659}}^1$

素因数の和:725

約数の個数: 96

約数和(自身を含む): 198696960

約数和(自身を除く): 116899244

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 31, 44, 52, 62, 77, 91, 124, 143, 154, 182, 217, 286, 308, 341, 364, 403, 434, 572, 659, 682, 806, 868, 1001, 1318, 1364, 1612, 2002, 2387, 2636, 2821, 4004, 4433, 4613, 4774, 5642, 7249, 8567, 8866, 9226, 9548, 11284, 14498, 17134, 17732, 18452, 20429, 28996, 31031, 34268, 40858, 50743, 59969, 62062, 81716, 94237, 101486, 119938, 124124, 143003, 188474, 202972, 224719, 239876, 265577, 286006, 376948, 449438, 531154, 572012, 659659, 898876, 1062308, 1319318, 1573033, 1859039, 2638636, 2921347, 3146066, 3718078, 5842694, 6292132, 7436156, 11685388, 20449429, 40898858, 81797716]

約数ペア:

[(1, 81797716), (2, 40898858), (4, 20449429), (7, 11685388), (11, 7436156), (13, 6292132), (14, 5842694), (22, 3718078), (26, 3146066), (28, 2921347), (31, 2638636), (44, 1859039), (52, 1573033), (62, 1319318), (77, 1062308), (91, 898876), (124, 659659), (143, 572012), (154, 531154), (182, 449438), (217, 376948), (286, 286006), (308, 265577), (341, 239876), (364, 224719), (403, 202972), (434, 188474), (572, 143003), (659, 124124), (682, 119938), (806, 101486), (868, 94237), (1001, 81716), (1318, 62062), (1364, 59969), (1612, 50743), (2002, 40858), (2387, 34268), (2636, 31031), (2821, 28996), (4004, 20429), (4433, 18452), (4613, 17732), (4774, 17134), (5642, 14498), (7249, 11284), (8567, 9548), (8866, 9226)]