28912500

素因数分解:

$2^2\times 3^2\times 5^5\times {\mathrm{257}}^1$

素因数の和:292

約数の個数: 108

約数和(自身を含む): 91705068

約数和(自身を除く): 62792568

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 125, 150, 180, 225, 250, 257, 300, 375, 450, 500, 514, 625, 750, 771, 900, 1028, 1125, 1250, 1285, 1500, 1542, 1875, 2250, 2313, 2500, 2570, 3084, 3125, 3750, 3855, 4500, 4626, 5140, 5625, 6250, 6425, 7500, 7710, 9252, 9375, 11250, 11565, 12500, 12850, 15420, 18750, 19275, 22500, 23130, 25700, 28125, 32125, 37500, 38550, 46260, 56250, 57825, 64250, 77100, 96375, 112500, 115650, 128500, 160625, 192750, 231300, 289125, 321250, 385500, 481875, 578250, 642500, 803125, 963750, 1156500, 1445625, 1606250, 1927500, 2409375, 2891250, 3212500, 4818750, 5782500, 7228125, 9637500, 14456250, 28912500]

約数ペア:

[(1, 28912500), (2, 14456250), (3, 9637500), (4, 7228125), (5, 5782500), (6, 4818750), (9, 3212500), (10, 2891250), (12, 2409375), (15, 1927500), (18, 1606250), (20, 1445625), (25, 1156500), (30, 963750), (36, 803125), (45, 642500), (50, 578250), (60, 481875), (75, 385500), (90, 321250), (100, 289125), (125, 231300), (150, 192750), (180, 160625), (225, 128500), (250, 115650), (257, 112500), (300, 96375), (375, 77100), (450, 64250), (500, 57825), (514, 56250), (625, 46260), (750, 38550), (771, 37500), (900, 32125), (1028, 28125), (1125, 25700), (1250, 23130), (1285, 22500), (1500, 19275), (1542, 18750), (1875, 15420), (2250, 12850), (2313, 12500), (2500, 11565), (2570, 11250), (3084, 9375), (3125, 9252), (3750, 7710), (3855, 7500), (4500, 6425), (4626, 6250), (5140, 5625)]