1638943670338

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1307}}^1\times {\mathrm{1303507}}^1$

素因数の和:1304866

約数の個数: 32

約数和(自身を含む): 2721161588544

約数和(自身を除く): 1082217918206

約数列:

[1, 2, 13, 26, 37, 74, 481, 962, 1307, 2614, 16991, 33982, 48359, 96718, 628667, 1257334, 1303507, 2607014, 16945591, 33891182, 48229759, 96459518, 626986867, 1253973734, 1703683649, 3407367298, 22147887437, 44295774874, 63036295013, 126072590026, 819471835169, 1638943670338]

約数ペア:

[(1, 1638943670338), (2, 819471835169), (13, 126072590026), (26, 63036295013), (37, 44295774874), (74, 22147887437), (481, 3407367298), (962, 1703683649), (1307, 1253973734), (2614, 626986867), (16991, 96459518), (33982, 48229759), (48359, 33891182), (96718, 16945591), (628667, 2607014), (1257334, 1303507)]