16720321020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{136537}}^1$

素因数の和:136719

約数の個数: 96

約数和(自身を含む): 50739705408

約数和(自身を除く): 34019384388

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 157, 195, 260, 314, 390, 471, 628, 780, 785, 942, 1570, 1884, 2041, 2355, 3140, 4082, 4710, 6123, 8164, 9420, 10205, 12246, 20410, 24492, 30615, 40820, 61230, 122460, 136537, 273074, 409611, 546148, 682685, 819222, 1365370, 1638444, 1774981, 2048055, 2730740, 3549962, 4096110, 5324943, 7099924, 8192220, 8874905, 10649886, 17749810, 21299772, 21436309, 26624715, 35499620, 42872618, 53249430, 64308927, 85745236, 106498860, 107181545, 128617854, 214363090, 257235708, 278672017, 321544635, 428726180, 557344034, 643089270, 836016051, 1114688068, 1286178540, 1393360085, 1672032102, 2786720170, 3344064204, 4180080255, 5573440340, 8360160510, 16720321020]

約数ペア:

[(1, 16720321020), (2, 8360160510), (3, 5573440340), (4, 4180080255), (5, 3344064204), (6, 2786720170), (10, 1672032102), (12, 1393360085), (13, 1286178540), (15, 1114688068), (20, 836016051), (26, 643089270), (30, 557344034), (39, 428726180), (52, 321544635), (60, 278672017), (65, 257235708), (78, 214363090), (130, 128617854), (156, 107181545), (157, 106498860), (195, 85745236), (260, 64308927), (314, 53249430), (390, 42872618), (471, 35499620), (628, 26624715), (780, 21436309), (785, 21299772), (942, 17749810), (1570, 10649886), (1884, 8874905), (2041, 8192220), (2355, 7099924), (3140, 5324943), (4082, 4096110), (4710, 3549962), (6123, 2730740), (8164, 2048055), (9420, 1774981), (10205, 1638444), (12246, 1365370), (20410, 819222), (24492, 682685), (30615, 546148), (40820, 409611), (61230, 273074), (122460, 136537)]