19516340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{941}}^1$

素因数の和:1028

約数の個数: 48

約数和(自身を含む): 44153424

約数和(自身を除く): 24637084

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 61, 68, 85, 122, 170, 244, 305, 340, 610, 941, 1037, 1220, 1882, 2074, 3764, 4148, 4705, 5185, 9410, 10370, 15997, 18820, 20740, 31994, 57401, 63988, 79985, 114802, 159970, 229604, 287005, 319940, 574010, 975817, 1148020, 1951634, 3903268, 4879085, 9758170, 19516340]

約数ペア:

[(1, 19516340), (2, 9758170), (4, 4879085), (5, 3903268), (10, 1951634), (17, 1148020), (20, 975817), (34, 574010), (61, 319940), (68, 287005), (85, 229604), (122, 159970), (170, 114802), (244, 79985), (305, 63988), (340, 57401), (610, 31994), (941, 20740), (1037, 18820), (1220, 15997), (1882, 10370), (2074, 9410), (3764, 5185), (4148, 4705)]