2817280

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:123

約数の個数: 72

約数和(自身を含む): 7064064

約数和(自身を除く): 4246784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 71, 80, 124, 128, 142, 155, 160, 248, 256, 284, 310, 320, 355, 496, 568, 620, 640, 710, 992, 1136, 1240, 1280, 1420, 1984, 2201, 2272, 2480, 2840, 3968, 4402, 4544, 4960, 5680, 7936, 8804, 9088, 9920, 11005, 11360, 17608, 18176, 19840, 22010, 22720, 35216, 39680, 44020, 45440, 70432, 88040, 90880, 140864, 176080, 281728, 352160, 563456, 704320, 1408640, 2817280]

約数ペア:

[(1, 2817280), (2, 1408640), (4, 704320), (5, 563456), (8, 352160), (10, 281728), (16, 176080), (20, 140864), (31, 90880), (32, 88040), (40, 70432), (62, 45440), (64, 44020), (71, 39680), (80, 35216), (124, 22720), (128, 22010), (142, 19840), (155, 18176), (160, 17608), (248, 11360), (256, 11005), (284, 9920), (310, 9088), (320, 8804), (355, 7936), (496, 5680), (568, 4960), (620, 4544), (640, 4402), (710, 3968), (992, 2840), (1136, 2480), (1240, 2272), (1280, 2201), (1420, 1984)]