90279680

素因数分解:

$2^8\times 5^1\times {\mathrm{251}}^1\times {\mathrm{281}}^1$

素因数の和:553

約数の個数: 72

約数和(自身を含む): 217882224

約数和(自身を除く): 127602544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 251, 256, 281, 320, 502, 562, 640, 1004, 1124, 1255, 1280, 1405, 2008, 2248, 2510, 2810, 4016, 4496, 5020, 5620, 8032, 8992, 10040, 11240, 16064, 17984, 20080, 22480, 32128, 35968, 40160, 44960, 64256, 70531, 71936, 80320, 89920, 141062, 160640, 179840, 282124, 321280, 352655, 359680, 564248, 705310, 1128496, 1410620, 2256992, 2821240, 4513984, 5642480, 9027968, 11284960, 18055936, 22569920, 45139840, 90279680]

約数ペア:

[(1, 90279680), (2, 45139840), (4, 22569920), (5, 18055936), (8, 11284960), (10, 9027968), (16, 5642480), (20, 4513984), (32, 2821240), (40, 2256992), (64, 1410620), (80, 1128496), (128, 705310), (160, 564248), (251, 359680), (256, 352655), (281, 321280), (320, 282124), (502, 179840), (562, 160640), (640, 141062), (1004, 89920), (1124, 80320), (1255, 71936), (1280, 70531), (1405, 64256), (2008, 44960), (2248, 40160), (2510, 35968), (2810, 32128), (4016, 22480), (4496, 20080), (5020, 17984), (5620, 16064), (8032, 11240), (8992, 10040)]