158902900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3943}}^1$

素因数の和:4001

約数の個数: 72

約数和(自身を含む): 383419904

約数和(自身を除く): 224517004

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 31, 50, 52, 62, 65, 100, 124, 130, 155, 260, 310, 325, 403, 620, 650, 775, 806, 1300, 1550, 1612, 2015, 3100, 3943, 4030, 7886, 8060, 10075, 15772, 19715, 20150, 39430, 40300, 51259, 78860, 98575, 102518, 122233, 197150, 205036, 244466, 256295, 394300, 488932, 512590, 611165, 1025180, 1222330, 1281475, 1589029, 2444660, 2562950, 3055825, 3178058, 5125900, 6111650, 6356116, 7945145, 12223300, 15890290, 31780580, 39725725, 79451450, 158902900]

約数ペア:

[(1, 158902900), (2, 79451450), (4, 39725725), (5, 31780580), (10, 15890290), (13, 12223300), (20, 7945145), (25, 6356116), (26, 6111650), (31, 5125900), (50, 3178058), (52, 3055825), (62, 2562950), (65, 2444660), (100, 1589029), (124, 1281475), (130, 1222330), (155, 1025180), (260, 611165), (310, 512590), (325, 488932), (403, 394300), (620, 256295), (650, 244466), (775, 205036), (806, 197150), (1300, 122233), (1550, 102518), (1612, 98575), (2015, 78860), (3100, 51259), (3943, 40300), (4030, 39430), (7886, 20150), (8060, 19715), (10075, 15772)]