128828790

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{20161}}^1$

素因数の和:20245

約数の個数: 48

約数和(自身を含む): 339689376

約数和(自身を除く): 210860586

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 71, 90, 142, 213, 355, 426, 639, 710, 1065, 1278, 2130, 3195, 6390, 20161, 40322, 60483, 100805, 120966, 181449, 201610, 302415, 362898, 604830, 907245, 1431431, 1814490, 2862862, 4294293, 7157155, 8588586, 12882879, 14314310, 21471465, 25765758, 42942930, 64414395, 128828790]

約数ペア:

[(1, 128828790), (2, 64414395), (3, 42942930), (5, 25765758), (6, 21471465), (9, 14314310), (10, 12882879), (15, 8588586), (18, 7157155), (30, 4294293), (45, 2862862), (71, 1814490), (90, 1431431), (142, 907245), (213, 604830), (355, 362898), (426, 302415), (639, 201610), (710, 181449), (1065, 120966), (1278, 100805), (2130, 60483), (3195, 40322), (6390, 20161)]