78935880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{389}}^1$

素因数の和:511

約数の個数: 128

約数和(自身を含む): 252720000

約数和(自身を除く): 173784120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 89, 95, 114, 120, 152, 178, 190, 228, 267, 285, 356, 380, 389, 445, 456, 534, 570, 712, 760, 778, 890, 1068, 1140, 1167, 1335, 1556, 1691, 1780, 1945, 2136, 2280, 2334, 2670, 3112, 3382, 3560, 3890, 4668, 5073, 5340, 5835, 6764, 7391, 7780, 8455, 9336, 10146, 10680, 11670, 13528, 14782, 15560, 16910, 20292, 22173, 23340, 25365, 29564, 33820, 34621, 36955, 40584, 44346, 46680, 50730, 59128, 67640, 69242, 73910, 88692, 101460, 103863, 110865, 138484, 147820, 173105, 177384, 202920, 207726, 221730, 276968, 295640, 346210, 415452, 443460, 519315, 657799, 692420, 830904, 886920, 1038630, 1315598, 1384840, 1973397, 2077260, 2631196, 3288995, 3946794, 4154520, 5262392, 6577990, 7893588, 9866985, 13155980, 15787176, 19733970, 26311960, 39467940, 78935880]

約数ペア:

[(1, 78935880), (2, 39467940), (3, 26311960), (4, 19733970), (5, 15787176), (6, 13155980), (8, 9866985), (10, 7893588), (12, 6577990), (15, 5262392), (19, 4154520), (20, 3946794), (24, 3288995), (30, 2631196), (38, 2077260), (40, 1973397), (57, 1384840), (60, 1315598), (76, 1038630), (89, 886920), (95, 830904), (114, 692420), (120, 657799), (152, 519315), (178, 443460), (190, 415452), (228, 346210), (267, 295640), (285, 276968), (356, 221730), (380, 207726), (389, 202920), (445, 177384), (456, 173105), (534, 147820), (570, 138484), (712, 110865), (760, 103863), (778, 101460), (890, 88692), (1068, 73910), (1140, 69242), (1167, 67640), (1335, 59128), (1556, 50730), (1691, 46680), (1780, 44346), (1945, 40584), (2136, 36955), (2280, 34621), (2334, 33820), (2670, 29564), (3112, 25365), (3382, 23340), (3560, 22173), (3890, 20292), (4668, 16910), (5073, 15560), (5340, 14782), (5835, 13528), (6764, 11670), (7391, 10680), (7780, 10146), (8455, 9336)]