80540220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{281}}^2$

素因数の和:591

約数の個数: 72

約数和(自身を含む): 239630832

約数和(自身を除く): 159090612

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 281, 340, 510, 562, 843, 1020, 1124, 1405, 1686, 2810, 3372, 4215, 4777, 5620, 8430, 9554, 14331, 16860, 19108, 23885, 28662, 47770, 57324, 71655, 78961, 95540, 143310, 157922, 236883, 286620, 315844, 394805, 473766, 789610, 947532, 1184415, 1342337, 1579220, 2368830, 2684674, 4027011, 4737660, 5369348, 6711685, 8054022, 13423370, 16108044, 20135055, 26846740, 40270110, 80540220]

約数ペア:

[(1, 80540220), (2, 40270110), (3, 26846740), (4, 20135055), (5, 16108044), (6, 13423370), (10, 8054022), (12, 6711685), (15, 5369348), (17, 4737660), (20, 4027011), (30, 2684674), (34, 2368830), (51, 1579220), (60, 1342337), (68, 1184415), (85, 947532), (102, 789610), (170, 473766), (204, 394805), (255, 315844), (281, 286620), (340, 236883), (510, 157922), (562, 143310), (843, 95540), (1020, 78961), (1124, 71655), (1405, 57324), (1686, 47770), (2810, 28662), (3372, 23885), (4215, 19108), (4777, 16860), (5620, 14331), (8430, 9554)]