281728000

素因数分解:

$2^{10}\times 5^3\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:137

約数の個数: 176

約数和(自身を含む): 735740928

約数和(自身を除く): 454012928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 71, 80, 100, 124, 125, 128, 142, 155, 160, 200, 248, 250, 256, 284, 310, 320, 355, 400, 496, 500, 512, 568, 620, 640, 710, 775, 800, 992, 1000, 1024, 1136, 1240, 1280, 1420, 1550, 1600, 1775, 1984, 2000, 2201, 2272, 2480, 2560, 2840, 3100, 3200, 3550, 3875, 3968, 4000, 4402, 4544, 4960, 5120, 5680, 6200, 6400, 7100, 7750, 7936, 8000, 8804, 8875, 9088, 9920, 11005, 11360, 12400, 12800, 14200, 15500, 15872, 16000, 17608, 17750, 18176, 19840, 22010, 22720, 24800, 25600, 28400, 31000, 31744, 32000, 35216, 35500, 36352, 39680, 44020, 45440, 49600, 55025, 56800, 62000, 64000, 70432, 71000, 72704, 79360, 88040, 90880, 99200, 110050, 113600, 124000, 128000, 140864, 142000, 158720, 176080, 181760, 198400, 220100, 227200, 248000, 275125, 281728, 284000, 352160, 363520, 396800, 440200, 454400, 496000, 550250, 563456, 568000, 704320, 793600, 880400, 908800, 992000, 1100500, 1126912, 1136000, 1408640, 1760800, 1817600, 1984000, 2201000, 2253824, 2272000, 2817280, 3521600, 3968000, 4402000, 4544000, 5634560, 7043200, 8804000, 9088000, 11269120, 14086400, 17608000, 28172800, 35216000, 56345600, 70432000, 140864000, 281728000]

約数ペア:

[(1, 281728000), (2, 140864000), (4, 70432000), (5, 56345600), (8, 35216000), (10, 28172800), (16, 17608000), (20, 14086400), (25, 11269120), (31, 9088000), (32, 8804000), (40, 7043200), (50, 5634560), (62, 4544000), (64, 4402000), (71, 3968000), (80, 3521600), (100, 2817280), (124, 2272000), (125, 2253824), (128, 2201000), (142, 1984000), (155, 1817600), (160, 1760800), (200, 1408640), (248, 1136000), (250, 1126912), (256, 1100500), (284, 992000), (310, 908800), (320, 880400), (355, 793600), (400, 704320), (496, 568000), (500, 563456), (512, 550250), (568, 496000), (620, 454400), (640, 440200), (710, 396800), (775, 363520), (800, 352160), (992, 284000), (1000, 281728), (1024, 275125), (1136, 248000), (1240, 227200), (1280, 220100), (1420, 198400), (1550, 181760), (1600, 176080), (1775, 158720), (1984, 142000), (2000, 140864), (2201, 128000), (2272, 124000), (2480, 113600), (2560, 110050), (2840, 99200), (3100, 90880), (3200, 88040), (3550, 79360), (3875, 72704), (3968, 71000), (4000, 70432), (4402, 64000), (4544, 62000), (4960, 56800), (5120, 55025), (5680, 49600), (6200, 45440), (6400, 44020), (7100, 39680), (7750, 36352), (7936, 35500), (8000, 35216), (8804, 32000), (8875, 31744), (9088, 31000), (9920, 28400), (11005, 25600), (11360, 24800), (12400, 22720), (12800, 22010), (14200, 19840), (15500, 18176), (15872, 17750), (16000, 17608)]