81785340

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4993}}^1$

素因数の和:5028

約数の個数: 144

約数和(自身を含む): 305393088

約数和(自身を除く): 223607748

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 52, 60, 63, 65, 70, 78, 84, 90, 91, 105, 117, 126, 130, 140, 156, 180, 182, 195, 210, 234, 252, 260, 273, 315, 364, 390, 420, 455, 468, 546, 585, 630, 780, 819, 910, 1092, 1170, 1260, 1365, 1638, 1820, 2340, 2730, 3276, 4095, 4993, 5460, 8190, 9986, 14979, 16380, 19972, 24965, 29958, 34951, 44937, 49930, 59916, 64909, 69902, 74895, 89874, 99860, 104853, 129818, 139804, 149790, 174755, 179748, 194727, 209706, 224685, 259636, 299580, 314559, 324545, 349510, 389454, 419412, 449370, 454363, 524265, 584181, 629118, 649090, 699020, 778908, 898740, 908726, 973635, 1048530, 1168362, 1258236, 1298180, 1363089, 1572795, 1817452, 1947270, 2097060, 2271815, 2336724, 2726178, 2920905, 3145590, 3894540, 4089267, 4543630, 5452356, 5841810, 6291180, 6815445, 8178534, 9087260, 11683620, 13630890, 16357068, 20446335, 27261780, 40892670, 81785340]

約数ペア:

[(1, 81785340), (2, 40892670), (3, 27261780), (4, 20446335), (5, 16357068), (6, 13630890), (7, 11683620), (9, 9087260), (10, 8178534), (12, 6815445), (13, 6291180), (14, 5841810), (15, 5452356), (18, 4543630), (20, 4089267), (21, 3894540), (26, 3145590), (28, 2920905), (30, 2726178), (35, 2336724), (36, 2271815), (39, 2097060), (42, 1947270), (45, 1817452), (52, 1572795), (60, 1363089), (63, 1298180), (65, 1258236), (70, 1168362), (78, 1048530), (84, 973635), (90, 908726), (91, 898740), (105, 778908), (117, 699020), (126, 649090), (130, 629118), (140, 584181), (156, 524265), (180, 454363), (182, 449370), (195, 419412), (210, 389454), (234, 349510), (252, 324545), (260, 314559), (273, 299580), (315, 259636), (364, 224685), (390, 209706), (420, 194727), (455, 179748), (468, 174755), (546, 149790), (585, 139804), (630, 129818), (780, 104853), (819, 99860), (910, 89874), (1092, 74895), (1170, 69902), (1260, 64909), (1365, 59916), (1638, 49930), (1820, 44937), (2340, 34951), (2730, 29958), (3276, 24965), (4095, 19972), (4993, 16380), (5460, 14979), (8190, 9986)]