1688721000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{131}}^1\times {\mathrm{4297}}^1$

素因数の和:4452

約数の個数: 128

約数和(自身を含む): 5310264960

約数和(自身を除く): 3621543960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 100, 120, 125, 131, 150, 200, 250, 262, 300, 375, 393, 500, 524, 600, 655, 750, 786, 1000, 1048, 1310, 1500, 1572, 1965, 2620, 3000, 3144, 3275, 3930, 4297, 5240, 6550, 7860, 8594, 9825, 12891, 13100, 15720, 16375, 17188, 19650, 21485, 25782, 26200, 32750, 34376, 39300, 42970, 49125, 51564, 64455, 65500, 78600, 85940, 98250, 103128, 107425, 128910, 131000, 171880, 196500, 214850, 257820, 322275, 393000, 429700, 515640, 537125, 562907, 644550, 859400, 1074250, 1125814, 1289100, 1611375, 1688721, 2148500, 2251628, 2578200, 2814535, 3222750, 3377442, 4297000, 4503256, 5629070, 6445500, 6754884, 8443605, 11258140, 12891000, 13509768, 14072675, 16887210, 22516280, 28145350, 33774420, 42218025, 56290700, 67548840, 70363375, 84436050, 112581400, 140726750, 168872100, 211090125, 281453500, 337744200, 422180250, 562907000, 844360500, 1688721000]

約数ペア:

[(1, 1688721000), (2, 844360500), (3, 562907000), (4, 422180250), (5, 337744200), (6, 281453500), (8, 211090125), (10, 168872100), (12, 140726750), (15, 112581400), (20, 84436050), (24, 70363375), (25, 67548840), (30, 56290700), (40, 42218025), (50, 33774420), (60, 28145350), (75, 22516280), (100, 16887210), (120, 14072675), (125, 13509768), (131, 12891000), (150, 11258140), (200, 8443605), (250, 6754884), (262, 6445500), (300, 5629070), (375, 4503256), (393, 4297000), (500, 3377442), (524, 3222750), (600, 2814535), (655, 2578200), (750, 2251628), (786, 2148500), (1000, 1688721), (1048, 1611375), (1310, 1289100), (1500, 1125814), (1572, 1074250), (1965, 859400), (2620, 644550), (3000, 562907), (3144, 537125), (3275, 515640), (3930, 429700), (4297, 393000), (5240, 322275), (6550, 257820), (7860, 214850), (8594, 196500), (9825, 171880), (12891, 131000), (13100, 128910), (15720, 107425), (16375, 103128), (17188, 98250), (19650, 85940), (21485, 78600), (25782, 65500), (26200, 64455), (32750, 51564), (34376, 49125), (39300, 42970)]