81883620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4999}}^1$

素因数の和:5034

約数の個数: 144

約数和(自身を含む): 305760000

約数和(自身を除く): 223876380

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, 4999, 5460, 8190, 9998, 14997, 16380, 19996, 24995, 29994, 34993, 44991, 49990, 59988, 64987, 69986, 74985, 89982, 99980, 104979, 129974, 139972, 149970, 174965, 179964, 194961, 209958, 224955, 259948, 299940, 314937, 324935, 349930, 389922, 419916, 449910, 454909, 524895, 584883, 629874, 649870, 699860, 779844, 899820, 909818, 974805, 1049790, 1169766, 1259748, 1299740, 1364727, 1574685, 1819636, 1949610, 2099580, 2274545, 2339532, 2729454, 2924415, 3149370, 3899220, 4094181, 4549090, 5458908, 5848830, 6298740, 6823635, 8188362, 9098180, 11697660, 13647270, 16376724, 20470905, 27294540, 40941810, 81883620]

約数ペア:

[(1, 81883620), (2, 40941810), (3, 27294540), (4, 20470905), (5, 16376724), (6, 13647270), (7, 11697660), (9, 9098180), (10, 8188362), (12, 6823635), (13, 6298740), (14, 5848830), (15, 5458908), (18, 4549090), (20, 4094181), (21, 3899220), (26, 3149370), (28, 2924415), (30, 2729454), (35, 2339532), (36, 2274545), (39, 2099580), (42, 1949610), (45, 1819636), (52, 1574685), (60, 1364727), (63, 1299740), (65, 1259748), (70, 1169766), (78, 1049790), (84, 974805), (90, 909818), (91, 899820), (105, 779844), (117, 699860), (126, 649870), (130, 629874), (140, 584883), (156, 524895), (180, 454909), (182, 449910), (195, 419916), (210, 389922), (234, 349930), (252, 324935), (260, 314937), (273, 299940), (315, 259948), (364, 224955), (390, 209958), (420, 194961), (455, 179964), (468, 174965), (546, 149970), (585, 139972), (630, 129974), (780, 104979), (819, 99980), (910, 89982), (1092, 74985), (1170, 69986), (1260, 64987), (1365, 59988), (1638, 49990), (1820, 44991), (2340, 34993), (2730, 29994), (3276, 24995), (4095, 19996), (4999, 16380), (5460, 14997), (8190, 9998)]