90234560

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:338

約数の個数: 112

約数和(自身を含む): 234696000

約数和(自身を除く): 144461440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 109, 130, 160, 199, 208, 218, 260, 320, 398, 416, 436, 520, 545, 796, 832, 872, 995, 1040, 1090, 1417, 1592, 1744, 1990, 2080, 2180, 2587, 2834, 3184, 3488, 3980, 4160, 4360, 5174, 5668, 6368, 6976, 7085, 7960, 8720, 10348, 11336, 12736, 12935, 14170, 15920, 17440, 20696, 21691, 22672, 25870, 28340, 31840, 34880, 41392, 43382, 45344, 51740, 56680, 63680, 82784, 86764, 90688, 103480, 108455, 113360, 165568, 173528, 206960, 216910, 226720, 281983, 347056, 413920, 433820, 453440, 563966, 694112, 827840, 867640, 1127932, 1388224, 1409915, 1735280, 2255864, 2819830, 3470560, 4511728, 5639660, 6941120, 9023456, 11279320, 18046912, 22558640, 45117280, 90234560]

約数ペア:

[(1, 90234560), (2, 45117280), (4, 22558640), (5, 18046912), (8, 11279320), (10, 9023456), (13, 6941120), (16, 5639660), (20, 4511728), (26, 3470560), (32, 2819830), (40, 2255864), (52, 1735280), (64, 1409915), (65, 1388224), (80, 1127932), (104, 867640), (109, 827840), (130, 694112), (160, 563966), (199, 453440), (208, 433820), (218, 413920), (260, 347056), (320, 281983), (398, 226720), (416, 216910), (436, 206960), (520, 173528), (545, 165568), (796, 113360), (832, 108455), (872, 103480), (995, 90688), (1040, 86764), (1090, 82784), (1417, 63680), (1592, 56680), (1744, 51740), (1990, 45344), (2080, 43382), (2180, 41392), (2587, 34880), (2834, 31840), (3184, 28340), (3488, 25870), (3980, 22672), (4160, 21691), (4360, 20696), (5174, 17440), (5668, 15920), (6368, 14170), (6976, 12935), (7085, 12736), (7960, 11336), (8720, 10348)]