82557720

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{181}}^2$

素因数の和:386

約数の個数: 144

約数和(自身を含む): 308346480

約数和(自身を除く): 225788760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 181, 210, 252, 280, 315, 360, 362, 420, 504, 543, 630, 724, 840, 905, 1086, 1260, 1267, 1448, 1629, 1810, 2172, 2520, 2534, 2715, 3258, 3620, 3801, 4344, 5068, 5430, 6335, 6516, 7240, 7602, 8145, 10136, 10860, 11403, 12670, 13032, 15204, 16290, 19005, 21720, 22806, 25340, 30408, 32580, 32761, 38010, 45612, 50680, 57015, 65160, 65522, 76020, 91224, 98283, 114030, 131044, 152040, 163805, 196566, 228060, 229327, 262088, 294849, 327610, 393132, 456120, 458654, 491415, 589698, 655220, 687981, 786264, 917308, 982830, 1146635, 1179396, 1310440, 1375962, 1474245, 1834616, 1965660, 2063943, 2293270, 2358792, 2751924, 2948490, 3439905, 3931320, 4127886, 4586540, 5503848, 5896980, 6879810, 8255772, 9173080, 10319715, 11793960, 13759620, 16511544, 20639430, 27519240, 41278860, 82557720]

約数ペア:

[(1, 82557720), (2, 41278860), (3, 27519240), (4, 20639430), (5, 16511544), (6, 13759620), (7, 11793960), (8, 10319715), (9, 9173080), (10, 8255772), (12, 6879810), (14, 5896980), (15, 5503848), (18, 4586540), (20, 4127886), (21, 3931320), (24, 3439905), (28, 2948490), (30, 2751924), (35, 2358792), (36, 2293270), (40, 2063943), (42, 1965660), (45, 1834616), (56, 1474245), (60, 1375962), (63, 1310440), (70, 1179396), (72, 1146635), (84, 982830), (90, 917308), (105, 786264), (120, 687981), (126, 655220), (140, 589698), (168, 491415), (180, 458654), (181, 456120), (210, 393132), (252, 327610), (280, 294849), (315, 262088), (360, 229327), (362, 228060), (420, 196566), (504, 163805), (543, 152040), (630, 131044), (724, 114030), (840, 98283), (905, 91224), (1086, 76020), (1260, 65522), (1267, 65160), (1448, 57015), (1629, 50680), (1810, 45612), (2172, 38010), (2520, 32761), (2534, 32580), (2715, 30408), (3258, 25340), (3620, 22806), (3801, 21720), (4344, 19005), (5068, 16290), (5430, 15204), (6335, 13032), (6516, 12670), (7240, 11403), (7602, 10860), (8145, 10136)]