16478720

素因数分解:

$2^9\times 5^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:221

約数の個数: 80

約数和(自身を含む): 40731768

約数和(自身を除く): 24253048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 157, 160, 164, 205, 256, 314, 320, 328, 410, 512, 628, 640, 656, 785, 820, 1256, 1280, 1312, 1570, 1640, 2512, 2560, 2624, 3140, 3280, 5024, 5248, 6280, 6437, 6560, 10048, 10496, 12560, 12874, 13120, 20096, 20992, 25120, 25748, 26240, 32185, 40192, 50240, 51496, 52480, 64370, 80384, 100480, 102992, 104960, 128740, 200960, 205984, 257480, 401920, 411968, 514960, 823936, 1029920, 1647872, 2059840, 3295744, 4119680, 8239360, 16478720]

約数ペア:

[(1, 16478720), (2, 8239360), (4, 4119680), (5, 3295744), (8, 2059840), (10, 1647872), (16, 1029920), (20, 823936), (32, 514960), (40, 411968), (41, 401920), (64, 257480), (80, 205984), (82, 200960), (128, 128740), (157, 104960), (160, 102992), (164, 100480), (205, 80384), (256, 64370), (314, 52480), (320, 51496), (328, 50240), (410, 40192), (512, 32185), (628, 26240), (640, 25748), (656, 25120), (785, 20992), (820, 20096), (1256, 13120), (1280, 12874), (1312, 12560), (1570, 10496), (1640, 10048), (2512, 6560), (2560, 6437), (2624, 6280), (3140, 5248), (3280, 5024)]