217804940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{191}}^1$

素因数の和:327

約数の個数: 96

約数和(自身を含む): 500097024

約数和(自身を除く): 282292084

約数列:

[1, 2, 4, 5, 10, 20, 23, 37, 46, 67, 74, 92, 115, 134, 148, 185, 191, 230, 268, 335, 370, 382, 460, 670, 740, 764, 851, 955, 1340, 1541, 1702, 1910, 2479, 3082, 3404, 3820, 4255, 4393, 4958, 6164, 7067, 7705, 8510, 8786, 9916, 12395, 12797, 14134, 15410, 17020, 17572, 21965, 24790, 25594, 28268, 30820, 35335, 43930, 49580, 51188, 57017, 63985, 70670, 87860, 114034, 127970, 141340, 162541, 228068, 255940, 285085, 294331, 325082, 473489, 570170, 588662, 650164, 812705, 946978, 1140340, 1177324, 1471655, 1625410, 1893956, 2367445, 2943310, 3250820, 4734890, 5886620, 9469780, 10890247, 21780494, 43560988, 54451235, 108902470, 217804940]

約数ペア:

[(1, 217804940), (2, 108902470), (4, 54451235), (5, 43560988), (10, 21780494), (20, 10890247), (23, 9469780), (37, 5886620), (46, 4734890), (67, 3250820), (74, 2943310), (92, 2367445), (115, 1893956), (134, 1625410), (148, 1471655), (185, 1177324), (191, 1140340), (230, 946978), (268, 812705), (335, 650164), (370, 588662), (382, 570170), (460, 473489), (670, 325082), (740, 294331), (764, 285085), (851, 255940), (955, 228068), (1340, 162541), (1541, 141340), (1702, 127970), (1910, 114034), (2479, 87860), (3082, 70670), (3404, 63985), (3820, 57017), (4255, 51188), (4393, 49580), (4958, 43930), (6164, 35335), (7067, 30820), (7705, 28268), (8510, 25594), (8786, 24790), (9916, 21965), (12395, 17572), (12797, 17020), (14134, 15410)]