217876890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{367}}^1$

素因数の和:652

約数の個数: 128

約数和(自身を含む): 656252928

約数和(自身を除く): 438376038

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 42, 55, 66, 70, 77, 105, 110, 154, 165, 210, 231, 257, 330, 367, 385, 462, 514, 734, 770, 771, 1101, 1155, 1285, 1542, 1799, 1835, 2202, 2310, 2569, 2570, 2827, 3598, 3670, 3855, 4037, 5138, 5397, 5505, 5654, 7707, 7710, 8074, 8481, 8995, 10794, 11010, 12111, 12845, 14135, 15414, 16962, 17990, 19789, 20185, 24222, 25690, 26985, 28259, 28270, 38535, 39578, 40370, 42405, 53970, 56518, 59367, 60555, 77070, 84777, 84810, 94319, 98945, 118734, 121110, 141295, 169554, 188638, 197890, 282590, 282957, 296835, 423885, 471595, 565914, 593670, 660233, 847770, 943190, 1037509, 1320466, 1414785, 1980699, 2075018, 2829570, 3112527, 3301165, 3961398, 5187545, 6225054, 6602330, 7262563, 9903495, 10375090, 14525126, 15562635, 19806990, 21787689, 31125270, 36312815, 43575378, 72625630, 108938445, 217876890]

約数ペア:

[(1, 217876890), (2, 108938445), (3, 72625630), (5, 43575378), (6, 36312815), (7, 31125270), (10, 21787689), (11, 19806990), (14, 15562635), (15, 14525126), (21, 10375090), (22, 9903495), (30, 7262563), (33, 6602330), (35, 6225054), (42, 5187545), (55, 3961398), (66, 3301165), (70, 3112527), (77, 2829570), (105, 2075018), (110, 1980699), (154, 1414785), (165, 1320466), (210, 1037509), (231, 943190), (257, 847770), (330, 660233), (367, 593670), (385, 565914), (462, 471595), (514, 423885), (734, 296835), (770, 282957), (771, 282590), (1101, 197890), (1155, 188638), (1285, 169554), (1542, 141295), (1799, 121110), (1835, 118734), (2202, 98945), (2310, 94319), (2569, 84810), (2570, 84777), (2827, 77070), (3598, 60555), (3670, 59367), (3855, 56518), (4037, 53970), (5138, 42405), (5397, 40370), (5505, 39578), (5654, 38535), (7707, 28270), (7710, 28259), (8074, 26985), (8481, 25690), (8995, 24222), (10794, 20185), (11010, 19789), (12111, 17990), (12845, 16962), (14135, 15414)]