521519220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1399}}^1$

素因数の和:1542

約数の個数: 144

約数和(自身を含む): 1681680000

約数和(自身を除く): 1160160780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 109, 114, 171, 180, 190, 218, 228, 285, 327, 342, 380, 436, 545, 570, 654, 684, 855, 981, 1090, 1140, 1308, 1399, 1635, 1710, 1962, 2071, 2180, 2798, 3270, 3420, 3924, 4142, 4197, 4905, 5596, 6213, 6540, 6995, 8284, 8394, 9810, 10355, 12426, 12591, 13990, 16788, 18639, 19620, 20710, 20985, 24852, 25182, 26581, 27980, 31065, 37278, 41420, 41970, 50364, 53162, 62130, 62955, 74556, 79743, 83940, 93195, 106324, 124260, 125910, 132905, 152491, 159486, 186390, 239229, 251820, 265810, 304982, 318972, 372780, 398715, 457473, 478458, 531620, 609964, 762455, 797430, 914946, 956916, 1196145, 1372419, 1524910, 1594860, 1829892, 2287365, 2392290, 2744838, 2897329, 3049820, 4574730, 4784580, 5489676, 5794658, 6862095, 8691987, 9149460, 11589316, 13724190, 14486645, 17383974, 26075961, 27448380, 28973290, 34767948, 43459935, 52151922, 57946580, 86919870, 104303844, 130379805, 173839740, 260759610, 521519220]

約数ペア:

[(1, 521519220), (2, 260759610), (3, 173839740), (4, 130379805), (5, 104303844), (6, 86919870), (9, 57946580), (10, 52151922), (12, 43459935), (15, 34767948), (18, 28973290), (19, 27448380), (20, 26075961), (30, 17383974), (36, 14486645), (38, 13724190), (45, 11589316), (57, 9149460), (60, 8691987), (76, 6862095), (90, 5794658), (95, 5489676), (109, 4784580), (114, 4574730), (171, 3049820), (180, 2897329), (190, 2744838), (218, 2392290), (228, 2287365), (285, 1829892), (327, 1594860), (342, 1524910), (380, 1372419), (436, 1196145), (545, 956916), (570, 914946), (654, 797430), (684, 762455), (855, 609964), (981, 531620), (1090, 478458), (1140, 457473), (1308, 398715), (1399, 372780), (1635, 318972), (1710, 304982), (1962, 265810), (2071, 251820), (2180, 239229), (2798, 186390), (3270, 159486), (3420, 152491), (3924, 132905), (4142, 125910), (4197, 124260), (4905, 106324), (5596, 93195), (6213, 83940), (6540, 79743), (6995, 74556), (8284, 62955), (8394, 62130), (9810, 53162), (10355, 50364), (12426, 41970), (12591, 41420), (13990, 37278), (16788, 31065), (18639, 27980), (19620, 26581), (20710, 25182), (20985, 24852)]