20194394740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{337}}^1\times {\mathrm{17729}}^1$

素因数の和:18101

約数の個数: 72

約数和(自身を含む): 46060199640

約数和(自身を除く): 25865804900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 337, 338, 674, 676, 845, 1348, 1685, 1690, 3370, 3380, 4381, 6740, 8762, 17524, 17729, 21905, 35458, 43810, 56953, 70916, 87620, 88645, 113906, 177290, 227812, 230477, 284765, 354580, 460954, 569530, 921908, 1139060, 1152385, 2304770, 2996201, 4609540, 5974673, 5992402, 11949346, 11984804, 14981005, 23898692, 29873365, 29962010, 59746730, 59924020, 77670749, 119493460, 155341498, 310682996, 388353745, 776707490, 1009719737, 1553414980, 2019439474, 4038878948, 5048598685, 10097197370, 20194394740]

約数ペア:

[(1, 20194394740), (2, 10097197370), (4, 5048598685), (5, 4038878948), (10, 2019439474), (13, 1553414980), (20, 1009719737), (26, 776707490), (52, 388353745), (65, 310682996), (130, 155341498), (169, 119493460), (260, 77670749), (337, 59924020), (338, 59746730), (674, 29962010), (676, 29873365), (845, 23898692), (1348, 14981005), (1685, 11984804), (1690, 11949346), (3370, 5992402), (3380, 5974673), (4381, 4609540), (6740, 2996201), (8762, 2304770), (17524, 1152385), (17729, 1139060), (21905, 921908), (35458, 569530), (43810, 460954), (56953, 354580), (70916, 284765), (87620, 230477), (88645, 227812), (113906, 177290)]