198973190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{509}}^1$

素因数の和:657

約数の個数: 64

約数和(自身を含む): 403038720

約数和(自身を除く): 204065530

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 97, 130, 155, 194, 310, 403, 485, 509, 806, 970, 1018, 1261, 2015, 2522, 2545, 3007, 4030, 5090, 6014, 6305, 6617, 12610, 13234, 15035, 15779, 30070, 31558, 33085, 39091, 49373, 66170, 78182, 78895, 98746, 157790, 195455, 205127, 246865, 390910, 410254, 493730, 641849, 1025635, 1283698, 1530563, 2051270, 3061126, 3209245, 6418490, 7652815, 15305630, 19897319, 39794638, 99486595, 198973190]

約数ペア:

[(1, 198973190), (2, 99486595), (5, 39794638), (10, 19897319), (13, 15305630), (26, 7652815), (31, 6418490), (62, 3209245), (65, 3061126), (97, 2051270), (130, 1530563), (155, 1283698), (194, 1025635), (310, 641849), (403, 493730), (485, 410254), (509, 390910), (806, 246865), (970, 205127), (1018, 195455), (1261, 157790), (2015, 98746), (2522, 78895), (2545, 78182), (3007, 66170), (4030, 49373), (5090, 39091), (6014, 33085), (6305, 31558), (6617, 30070), (12610, 15779), (13234, 15035)]