221040720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{523}}^1\times {\mathrm{587}}^1$

素因数の和:1129

約数の個数: 120

約数和(自身を含む): 745014816

約数和(自身を除く): 523974096

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 523, 587, 720, 1046, 1174, 1569, 1761, 2092, 2348, 2615, 2935, 3138, 3522, 4184, 4696, 4707, 5230, 5283, 5870, 6276, 7044, 7845, 8368, 8805, 9392, 9414, 10460, 10566, 11740, 12552, 14088, 15690, 17610, 18828, 20920, 21132, 23480, 23535, 25104, 26415, 28176, 31380, 35220, 37656, 41840, 42264, 46960, 47070, 52830, 62760, 70440, 75312, 84528, 94140, 105660, 125520, 140880, 188280, 211320, 307001, 376560, 422640, 614002, 921003, 1228004, 1535005, 1842006, 2456008, 2763009, 3070010, 3684012, 4605015, 4912016, 5526018, 6140020, 7368024, 9210030, 11052036, 12280040, 13815045, 14736048, 18420060, 22104072, 24560080, 27630090, 36840120, 44208144, 55260180, 73680240, 110520360, 221040720]

約数ペア:

[(1, 221040720), (2, 110520360), (3, 73680240), (4, 55260180), (5, 44208144), (6, 36840120), (8, 27630090), (9, 24560080), (10, 22104072), (12, 18420060), (15, 14736048), (16, 13815045), (18, 12280040), (20, 11052036), (24, 9210030), (30, 7368024), (36, 6140020), (40, 5526018), (45, 4912016), (48, 4605015), (60, 3684012), (72, 3070010), (80, 2763009), (90, 2456008), (120, 1842006), (144, 1535005), (180, 1228004), (240, 921003), (360, 614002), (523, 422640), (587, 376560), (720, 307001), (1046, 211320), (1174, 188280), (1569, 140880), (1761, 125520), (2092, 105660), (2348, 94140), (2615, 84528), (2935, 75312), (3138, 70440), (3522, 62760), (4184, 52830), (4696, 47070), (4707, 46960), (5230, 42264), (5283, 41840), (5870, 37656), (6276, 35220), (7044, 31380), (7845, 28176), (8368, 26415), (8805, 25104), (9392, 23535), (9414, 23480), (10460, 21132), (10566, 20920), (11740, 18828), (12552, 17610), (14088, 15690)]