81690000

素因数分解:

$2^4\times 3^1\times 5^4\times 7^1\times {\mathrm{389}}^1$

素因数の和:427

約数の個数: 200

約数和(自身を含む): 302153280

約数和(自身を除く): 220463280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 35, 40, 42, 48, 50, 56, 60, 70, 75, 80, 84, 100, 105, 112, 120, 125, 140, 150, 168, 175, 200, 210, 240, 250, 280, 300, 336, 350, 375, 389, 400, 420, 500, 525, 560, 600, 625, 700, 750, 778, 840, 875, 1000, 1050, 1167, 1200, 1250, 1400, 1500, 1556, 1680, 1750, 1875, 1945, 2000, 2100, 2334, 2500, 2625, 2723, 2800, 3000, 3112, 3500, 3750, 3890, 4200, 4375, 4668, 5000, 5250, 5446, 5835, 6000, 6224, 7000, 7500, 7780, 8169, 8400, 8750, 9336, 9725, 10000, 10500, 10892, 11670, 13125, 13615, 14000, 15000, 15560, 16338, 17500, 18672, 19450, 21000, 21784, 23340, 26250, 27230, 29175, 30000, 31120, 32676, 35000, 38900, 40845, 42000, 43568, 46680, 48625, 52500, 54460, 58350, 65352, 68075, 70000, 77800, 81690, 93360, 97250, 105000, 108920, 116700, 130704, 136150, 145875, 155600, 163380, 194500, 204225, 210000, 217840, 233400, 243125, 272300, 291750, 326760, 340375, 389000, 408450, 466800, 486250, 544600, 583500, 653520, 680750, 729375, 778000, 816900, 972500, 1021125, 1089200, 1167000, 1361500, 1458750, 1633800, 1701875, 1945000, 2042250, 2334000, 2723000, 2917500, 3267600, 3403750, 3890000, 4084500, 5105625, 5446000, 5835000, 6807500, 8169000, 10211250, 11670000, 13615000, 16338000, 20422500, 27230000, 40845000, 81690000]

約数ペア:

[(1, 81690000), (2, 40845000), (3, 27230000), (4, 20422500), (5, 16338000), (6, 13615000), (7, 11670000), (8, 10211250), (10, 8169000), (12, 6807500), (14, 5835000), (15, 5446000), (16, 5105625), (20, 4084500), (21, 3890000), (24, 3403750), (25, 3267600), (28, 2917500), (30, 2723000), (35, 2334000), (40, 2042250), (42, 1945000), (48, 1701875), (50, 1633800), (56, 1458750), (60, 1361500), (70, 1167000), (75, 1089200), (80, 1021125), (84, 972500), (100, 816900), (105, 778000), (112, 729375), (120, 680750), (125, 653520), (140, 583500), (150, 544600), (168, 486250), (175, 466800), (200, 408450), (210, 389000), (240, 340375), (250, 326760), (280, 291750), (300, 272300), (336, 243125), (350, 233400), (375, 217840), (389, 210000), (400, 204225), (420, 194500), (500, 163380), (525, 155600), (560, 145875), (600, 136150), (625, 130704), (700, 116700), (750, 108920), (778, 105000), (840, 97250), (875, 93360), (1000, 81690), (1050, 77800), (1167, 70000), (1200, 68075), (1250, 65352), (1400, 58350), (1500, 54460), (1556, 52500), (1680, 48625), (1750, 46680), (1875, 43568), (1945, 42000), (2000, 40845), (2100, 38900), (2334, 35000), (2500, 32676), (2625, 31120), (2723, 30000), (2800, 29175), (3000, 27230), (3112, 26250), (3500, 23340), (3750, 21784), (3890, 21000), (4200, 19450), (4375, 18672), (4668, 17500), (5000, 16338), (5250, 15560), (5446, 15000), (5835, 14000), (6000, 13615), (6224, 13125), (7000, 11670), (7500, 10892), (7780, 10500), (8169, 10000), (8400, 9725), (8750, 9336)]