890308900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^2\times {\mathrm{139}}^1\times {\mathrm{379}}^1$

素因数の和:558

約数の個数: 108

約数和(自身を含む): 2112625200

約数和(自身を除く): 1222316300

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 139, 169, 260, 278, 325, 338, 379, 556, 650, 676, 695, 758, 845, 1300, 1390, 1516, 1690, 1807, 1895, 2780, 3380, 3475, 3614, 3790, 4225, 4927, 6950, 7228, 7580, 8450, 9035, 9475, 9854, 13900, 16900, 18070, 18950, 19708, 23491, 24635, 36140, 37900, 45175, 46982, 49270, 52681, 64051, 90350, 93964, 98540, 105362, 117455, 123175, 128102, 180700, 210724, 234910, 246350, 256204, 263405, 320255, 469820, 492700, 526810, 587275, 640510, 684853, 1053620, 1174550, 1281020, 1317025, 1369706, 1601275, 2349100, 2634050, 2739412, 3202550, 3424265, 5268100, 6405100, 6848530, 8903089, 13697060, 17121325, 17806178, 34242650, 35612356, 44515445, 68485300, 89030890, 178061780, 222577225, 445154450, 890308900]

約数ペア:

[(1, 890308900), (2, 445154450), (4, 222577225), (5, 178061780), (10, 89030890), (13, 68485300), (20, 44515445), (25, 35612356), (26, 34242650), (50, 17806178), (52, 17121325), (65, 13697060), (100, 8903089), (130, 6848530), (139, 6405100), (169, 5268100), (260, 3424265), (278, 3202550), (325, 2739412), (338, 2634050), (379, 2349100), (556, 1601275), (650, 1369706), (676, 1317025), (695, 1281020), (758, 1174550), (845, 1053620), (1300, 684853), (1390, 640510), (1516, 587275), (1690, 526810), (1807, 492700), (1895, 469820), (2780, 320255), (3380, 263405), (3475, 256204), (3614, 246350), (3790, 234910), (4225, 210724), (4927, 180700), (6950, 128102), (7228, 123175), (7580, 117455), (8450, 105362), (9035, 98540), (9475, 93964), (9854, 90350), (13900, 64051), (16900, 52681), (18070, 49270), (18950, 46982), (19708, 45175), (23491, 37900), (24635, 36140)]