258650980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{977}}^1$

素因数の和:1085

約数の個数: 96

約数和(自身を含む): 651958272

約数和(自身を除く): 393307292

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 61, 62, 70, 122, 124, 140, 155, 217, 244, 305, 310, 427, 434, 610, 620, 854, 868, 977, 1085, 1220, 1708, 1891, 1954, 2135, 2170, 3782, 3908, 4270, 4340, 4885, 6839, 7564, 8540, 9455, 9770, 13237, 13678, 18910, 19540, 26474, 27356, 30287, 34195, 37820, 52948, 59597, 60574, 66185, 68390, 119194, 121148, 132370, 136780, 151435, 212009, 238388, 264740, 297985, 302870, 417179, 424018, 595970, 605740, 834358, 848036, 1060045, 1191940, 1668716, 1847507, 2085895, 2120090, 3695014, 4171790, 4240180, 7390028, 8343580, 9237535, 12932549, 18475070, 25865098, 36950140, 51730196, 64662745, 129325490, 258650980]

約数ペア:

[(1, 258650980), (2, 129325490), (4, 64662745), (5, 51730196), (7, 36950140), (10, 25865098), (14, 18475070), (20, 12932549), (28, 9237535), (31, 8343580), (35, 7390028), (61, 4240180), (62, 4171790), (70, 3695014), (122, 2120090), (124, 2085895), (140, 1847507), (155, 1668716), (217, 1191940), (244, 1060045), (305, 848036), (310, 834358), (427, 605740), (434, 595970), (610, 424018), (620, 417179), (854, 302870), (868, 297985), (977, 264740), (1085, 238388), (1220, 212009), (1708, 151435), (1891, 136780), (1954, 132370), (2135, 121148), (2170, 119194), (3782, 68390), (3908, 66185), (4270, 60574), (4340, 59597), (4885, 52948), (6839, 37820), (7564, 34195), (8540, 30287), (9455, 27356), (9770, 26474), (13237, 19540), (13678, 18910)]