78885720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{607}}^1$

素因数の和:662

約数の個数: 144

約数和(自身を含む): 271028160

約数和(自身を除く): 192142440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 38, 40, 45, 57, 60, 72, 76, 90, 95, 114, 120, 152, 171, 180, 190, 228, 285, 342, 360, 361, 380, 456, 570, 607, 684, 722, 760, 855, 1083, 1140, 1214, 1368, 1444, 1710, 1805, 1821, 2166, 2280, 2428, 2888, 3035, 3249, 3420, 3610, 3642, 4332, 4856, 5415, 5463, 6070, 6498, 6840, 7220, 7284, 8664, 9105, 10830, 10926, 11533, 12140, 12996, 14440, 14568, 16245, 18210, 21660, 21852, 23066, 24280, 25992, 27315, 32490, 34599, 36420, 43320, 43704, 46132, 54630, 57665, 64980, 69198, 72840, 92264, 103797, 109260, 115330, 129960, 138396, 172995, 207594, 218520, 219127, 230660, 276792, 345990, 415188, 438254, 461320, 518985, 657381, 691980, 830376, 876508, 1037970, 1095635, 1314762, 1383960, 1753016, 1972143, 2075940, 2191270, 2629524, 3286905, 3944286, 4151880, 4382540, 5259048, 6573810, 7888572, 8765080, 9860715, 13147620, 15777144, 19721430, 26295240, 39442860, 78885720]

約数ペア:

[(1, 78885720), (2, 39442860), (3, 26295240), (4, 19721430), (5, 15777144), (6, 13147620), (8, 9860715), (9, 8765080), (10, 7888572), (12, 6573810), (15, 5259048), (18, 4382540), (19, 4151880), (20, 3944286), (24, 3286905), (30, 2629524), (36, 2191270), (38, 2075940), (40, 1972143), (45, 1753016), (57, 1383960), (60, 1314762), (72, 1095635), (76, 1037970), (90, 876508), (95, 830376), (114, 691980), (120, 657381), (152, 518985), (171, 461320), (180, 438254), (190, 415188), (228, 345990), (285, 276792), (342, 230660), (360, 219127), (361, 218520), (380, 207594), (456, 172995), (570, 138396), (607, 129960), (684, 115330), (722, 109260), (760, 103797), (855, 92264), (1083, 72840), (1140, 69198), (1214, 64980), (1368, 57665), (1444, 54630), (1710, 46132), (1805, 43704), (1821, 43320), (2166, 36420), (2280, 34599), (2428, 32490), (2888, 27315), (3035, 25992), (3249, 24280), (3420, 23066), (3610, 21852), (3642, 21660), (4332, 18210), (4856, 16245), (5415, 14568), (5463, 14440), (6070, 12996), (6498, 12140), (6840, 11533), (7220, 10926), (7284, 10830), (8664, 9105)]