81342900

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{47}}^1\times {\mathrm{641}}^1$

素因数の和:711

約数の個数: 144

約数和(自身を含む): 267482880

約数和(自身を除く): 186139980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 47, 50, 54, 60, 75, 90, 94, 100, 108, 135, 141, 150, 180, 188, 225, 235, 270, 282, 300, 423, 450, 470, 540, 564, 641, 675, 705, 846, 900, 940, 1175, 1269, 1282, 1350, 1410, 1692, 1923, 2115, 2350, 2538, 2564, 2700, 2820, 3205, 3525, 3846, 4230, 4700, 5076, 5769, 6345, 6410, 7050, 7692, 8460, 9615, 10575, 11538, 12690, 12820, 14100, 16025, 17307, 19230, 21150, 23076, 25380, 28845, 30127, 31725, 32050, 34614, 38460, 42300, 48075, 57690, 60254, 63450, 64100, 69228, 86535, 90381, 96150, 115380, 120508, 126900, 144225, 150635, 173070, 180762, 192300, 271143, 288450, 301270, 346140, 361524, 432675, 451905, 542286, 576900, 602540, 753175, 813429, 865350, 903810, 1084572, 1355715, 1506350, 1626858, 1730700, 1807620, 2259525, 2711430, 3012700, 3253716, 4067145, 4519050, 5422860, 6778575, 8134290, 9038100, 13557150, 16268580, 20335725, 27114300, 40671450, 81342900]

約数ペア:

[(1, 81342900), (2, 40671450), (3, 27114300), (4, 20335725), (5, 16268580), (6, 13557150), (9, 9038100), (10, 8134290), (12, 6778575), (15, 5422860), (18, 4519050), (20, 4067145), (25, 3253716), (27, 3012700), (30, 2711430), (36, 2259525), (45, 1807620), (47, 1730700), (50, 1626858), (54, 1506350), (60, 1355715), (75, 1084572), (90, 903810), (94, 865350), (100, 813429), (108, 753175), (135, 602540), (141, 576900), (150, 542286), (180, 451905), (188, 432675), (225, 361524), (235, 346140), (270, 301270), (282, 288450), (300, 271143), (423, 192300), (450, 180762), (470, 173070), (540, 150635), (564, 144225), (641, 126900), (675, 120508), (705, 115380), (846, 96150), (900, 90381), (940, 86535), (1175, 69228), (1269, 64100), (1282, 63450), (1350, 60254), (1410, 57690), (1692, 48075), (1923, 42300), (2115, 38460), (2350, 34614), (2538, 32050), (2564, 31725), (2700, 30127), (2820, 28845), (3205, 25380), (3525, 23076), (3846, 21150), (4230, 19230), (4700, 17307), (5076, 16025), (5769, 14100), (6345, 12820), (6410, 12690), (7050, 11538), (7692, 10575), (8460, 9615)]