1257980000

素因数分解:

$2^5\times 5^4\times {\mathrm{31}}^1\times {\mathrm{2029}}^1$

素因数の和:2090

約数の個数: 120

約数和(自身を含む): 3196226880

約数和(自身を除く): 1938246880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 80, 100, 124, 125, 155, 160, 200, 248, 250, 310, 400, 496, 500, 620, 625, 775, 800, 992, 1000, 1240, 1250, 1550, 2000, 2029, 2480, 2500, 3100, 3875, 4000, 4058, 4960, 5000, 6200, 7750, 8116, 10000, 10145, 12400, 15500, 16232, 19375, 20000, 20290, 24800, 31000, 32464, 38750, 40580, 50725, 62000, 62899, 64928, 77500, 81160, 101450, 124000, 125798, 155000, 162320, 202900, 251596, 253625, 310000, 314495, 324640, 405800, 503192, 507250, 620000, 628990, 811600, 1006384, 1014500, 1257980, 1268125, 1572475, 1623200, 2012768, 2029000, 2515960, 2536250, 3144950, 4058000, 5031920, 5072500, 6289900, 7862375, 8116000, 10063840, 10145000, 12579800, 15724750, 20290000, 25159600, 31449500, 39311875, 40580000, 50319200, 62899000, 78623750, 125798000, 157247500, 251596000, 314495000, 628990000, 1257980000]

約数ペア:

[(1, 1257980000), (2, 628990000), (4, 314495000), (5, 251596000), (8, 157247500), (10, 125798000), (16, 78623750), (20, 62899000), (25, 50319200), (31, 40580000), (32, 39311875), (40, 31449500), (50, 25159600), (62, 20290000), (80, 15724750), (100, 12579800), (124, 10145000), (125, 10063840), (155, 8116000), (160, 7862375), (200, 6289900), (248, 5072500), (250, 5031920), (310, 4058000), (400, 3144950), (496, 2536250), (500, 2515960), (620, 2029000), (625, 2012768), (775, 1623200), (800, 1572475), (992, 1268125), (1000, 1257980), (1240, 1014500), (1250, 1006384), (1550, 811600), (2000, 628990), (2029, 620000), (2480, 507250), (2500, 503192), (3100, 405800), (3875, 324640), (4000, 314495), (4058, 310000), (4960, 253625), (5000, 251596), (6200, 202900), (7750, 162320), (8116, 155000), (10000, 125798), (10145, 124000), (12400, 101450), (15500, 81160), (16232, 77500), (19375, 64928), (20000, 62899), (20290, 62000), (24800, 50725), (31000, 40580), (32464, 38750)]