13198720

素因数分解:

$2^7\times 5^1\times {\mathrm{41}}^1\times {\mathrm{503}}^1$

素因数の和:563

約数の個数: 64

約数和(自身を含む): 32387040

約数和(自身を除く): 19188320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 320, 328, 410, 503, 640, 656, 820, 1006, 1312, 1640, 2012, 2515, 2624, 3280, 4024, 5030, 5248, 6560, 8048, 10060, 13120, 16096, 20120, 20623, 26240, 32192, 40240, 41246, 64384, 80480, 82492, 103115, 160960, 164984, 206230, 321920, 329968, 412460, 659936, 824920, 1319872, 1649840, 2639744, 3299680, 6599360, 13198720]

約数ペア:

[(1, 13198720), (2, 6599360), (4, 3299680), (5, 2639744), (8, 1649840), (10, 1319872), (16, 824920), (20, 659936), (32, 412460), (40, 329968), (41, 321920), (64, 206230), (80, 164984), (82, 160960), (128, 103115), (160, 82492), (164, 80480), (205, 64384), (320, 41246), (328, 40240), (410, 32192), (503, 26240), (640, 20623), (656, 20120), (820, 16096), (1006, 13120), (1312, 10060), (1640, 8048), (2012, 6560), (2515, 5248), (2624, 5030), (3280, 4024)]