19709430

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{521}}^1$

素因数の和:641

約数の個数: 64

約数和(自身を含む): 51565248

約数和(自身を除く): 31855818

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 97, 130, 194, 195, 291, 390, 485, 521, 582, 970, 1042, 1261, 1455, 1563, 2522, 2605, 2910, 3126, 3783, 5210, 6305, 6773, 7566, 7815, 12610, 13546, 15630, 18915, 20319, 33865, 37830, 40638, 50537, 67730, 101074, 101595, 151611, 203190, 252685, 303222, 505370, 656981, 758055, 1313962, 1516110, 1970943, 3284905, 3941886, 6569810, 9854715, 19709430]

約数ペア:

[(1, 19709430), (2, 9854715), (3, 6569810), (5, 3941886), (6, 3284905), (10, 1970943), (13, 1516110), (15, 1313962), (26, 758055), (30, 656981), (39, 505370), (65, 303222), (78, 252685), (97, 203190), (130, 151611), (194, 101595), (195, 101074), (291, 67730), (390, 50537), (485, 40638), (521, 37830), (582, 33865), (970, 20319), (1042, 18915), (1261, 15630), (1455, 13546), (1563, 12610), (2522, 7815), (2605, 7566), (2910, 6773), (3126, 6305), (3783, 5210)]