209634560

素因数分解:

$2^8\times 5^1\times {\mathrm{199}}^1\times {\mathrm{823}}^1$

素因数の和:1043

約数の個数: 72

約数和(自身を含む): 505276800

約数和(自身を除く): 295642240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 199, 256, 320, 398, 640, 796, 823, 995, 1280, 1592, 1646, 1990, 3184, 3292, 3980, 4115, 6368, 6584, 7960, 8230, 12736, 13168, 15920, 16460, 25472, 26336, 31840, 32920, 50944, 52672, 63680, 65840, 105344, 127360, 131680, 163777, 210688, 254720, 263360, 327554, 526720, 655108, 818885, 1053440, 1310216, 1637770, 2620432, 3275540, 5240864, 6551080, 10481728, 13102160, 20963456, 26204320, 41926912, 52408640, 104817280, 209634560]

約数ペア:

[(1, 209634560), (2, 104817280), (4, 52408640), (5, 41926912), (8, 26204320), (10, 20963456), (16, 13102160), (20, 10481728), (32, 6551080), (40, 5240864), (64, 3275540), (80, 2620432), (128, 1637770), (160, 1310216), (199, 1053440), (256, 818885), (320, 655108), (398, 526720), (640, 327554), (796, 263360), (823, 254720), (995, 210688), (1280, 163777), (1592, 131680), (1646, 127360), (1990, 105344), (3184, 65840), (3292, 63680), (3980, 52672), (4115, 50944), (6368, 32920), (6584, 31840), (7960, 26336), (8230, 25472), (12736, 16460), (13168, 15920)]