8180260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{103}}^1$

素因数の和:161

約数の個数: 72

約数和(自身を含む): 19970496

約数和(自身を除く): 11790236

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 103, 110, 190, 206, 209, 220, 361, 380, 412, 418, 515, 722, 836, 1030, 1045, 1133, 1444, 1805, 1957, 2060, 2090, 2266, 3610, 3914, 3971, 4180, 4532, 5665, 7220, 7828, 7942, 9785, 11330, 15884, 19570, 19855, 21527, 22660, 37183, 39140, 39710, 43054, 74366, 79420, 86108, 107635, 148732, 185915, 215270, 371830, 409013, 430540, 743660, 818026, 1636052, 2045065, 4090130, 8180260]

約数ペア:

[(1, 8180260), (2, 4090130), (4, 2045065), (5, 1636052), (10, 818026), (11, 743660), (19, 430540), (20, 409013), (22, 371830), (38, 215270), (44, 185915), (55, 148732), (76, 107635), (95, 86108), (103, 79420), (110, 74366), (190, 43054), (206, 39710), (209, 39140), (220, 37183), (361, 22660), (380, 21527), (412, 19855), (418, 19570), (515, 15884), (722, 11330), (836, 9785), (1030, 7942), (1045, 7828), (1133, 7220), (1444, 5665), (1805, 4532), (1957, 4180), (2060, 3971), (2090, 3914), (2266, 3610)]