28172800

素因数分解:

$2^9\times 5^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:130

約数の個数: 120

約数和(自身を含む): 73066752

約数和(自身を除く): 44893952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 71, 80, 100, 124, 128, 142, 155, 160, 200, 248, 256, 284, 310, 320, 355, 400, 496, 512, 568, 620, 640, 710, 775, 800, 992, 1136, 1240, 1280, 1420, 1550, 1600, 1775, 1984, 2201, 2272, 2480, 2560, 2840, 3100, 3200, 3550, 3968, 4402, 4544, 4960, 5680, 6200, 6400, 7100, 7936, 8804, 9088, 9920, 11005, 11360, 12400, 12800, 14200, 15872, 17608, 18176, 19840, 22010, 22720, 24800, 28400, 35216, 36352, 39680, 44020, 45440, 49600, 55025, 56800, 70432, 79360, 88040, 90880, 99200, 110050, 113600, 140864, 176080, 181760, 198400, 220100, 227200, 281728, 352160, 396800, 440200, 454400, 563456, 704320, 880400, 908800, 1126912, 1408640, 1760800, 2817280, 3521600, 5634560, 7043200, 14086400, 28172800]

約数ペア:

[(1, 28172800), (2, 14086400), (4, 7043200), (5, 5634560), (8, 3521600), (10, 2817280), (16, 1760800), (20, 1408640), (25, 1126912), (31, 908800), (32, 880400), (40, 704320), (50, 563456), (62, 454400), (64, 440200), (71, 396800), (80, 352160), (100, 281728), (124, 227200), (128, 220100), (142, 198400), (155, 181760), (160, 176080), (200, 140864), (248, 113600), (256, 110050), (284, 99200), (310, 90880), (320, 88040), (355, 79360), (400, 70432), (496, 56800), (512, 55025), (568, 49600), (620, 45440), (640, 44020), (710, 39680), (775, 36352), (800, 35216), (992, 28400), (1136, 24800), (1240, 22720), (1280, 22010), (1420, 19840), (1550, 18176), (1600, 17608), (1775, 15872), (1984, 14200), (2201, 12800), (2272, 12400), (2480, 11360), (2560, 11005), (2840, 9920), (3100, 9088), (3200, 8804), (3550, 7936), (3968, 7100), (4402, 6400), (4544, 6200), (4960, 5680)]