257288880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3319}}^1$

素因数の和:3371

約数の個数: 160

約数和(自身を含む): 889228800

約数和(自身を除く): 631939920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 19, 20, 24, 30, 34, 38, 40, 48, 51, 57, 60, 68, 76, 80, 85, 95, 102, 114, 120, 136, 152, 170, 190, 204, 228, 240, 255, 272, 285, 304, 323, 340, 380, 408, 456, 510, 570, 646, 680, 760, 816, 912, 969, 1020, 1140, 1292, 1360, 1520, 1615, 1938, 2040, 2280, 2584, 3230, 3319, 3876, 4080, 4560, 4845, 5168, 6460, 6638, 7752, 9690, 9957, 12920, 13276, 15504, 16595, 19380, 19914, 25840, 26552, 33190, 38760, 39828, 49785, 53104, 56423, 63061, 66380, 77520, 79656, 99570, 112846, 126122, 132760, 159312, 169269, 189183, 199140, 225692, 252244, 265520, 282115, 315305, 338538, 378366, 398280, 451384, 504488, 564230, 630610, 677076, 756732, 796560, 846345, 902768, 945915, 1008976, 1072037, 1128460, 1261220, 1354152, 1513464, 1692690, 1891830, 2144074, 2256920, 2522440, 2708304, 3026928, 3216111, 3385380, 3783660, 4288148, 4513840, 5044880, 5360185, 6432222, 6770760, 7567320, 8576296, 10720370, 12864444, 13541520, 15134640, 16080555, 17152592, 21440740, 25728888, 32161110, 42881480, 51457776, 64322220, 85762960, 128644440, 257288880]

約数ペア:

[(1, 257288880), (2, 128644440), (3, 85762960), (4, 64322220), (5, 51457776), (6, 42881480), (8, 32161110), (10, 25728888), (12, 21440740), (15, 17152592), (16, 16080555), (17, 15134640), (19, 13541520), (20, 12864444), (24, 10720370), (30, 8576296), (34, 7567320), (38, 6770760), (40, 6432222), (48, 5360185), (51, 5044880), (57, 4513840), (60, 4288148), (68, 3783660), (76, 3385380), (80, 3216111), (85, 3026928), (95, 2708304), (102, 2522440), (114, 2256920), (120, 2144074), (136, 1891830), (152, 1692690), (170, 1513464), (190, 1354152), (204, 1261220), (228, 1128460), (240, 1072037), (255, 1008976), (272, 945915), (285, 902768), (304, 846345), (323, 796560), (340, 756732), (380, 677076), (408, 630610), (456, 564230), (510, 504488), (570, 451384), (646, 398280), (680, 378366), (760, 338538), (816, 315305), (912, 282115), (969, 265520), (1020, 252244), (1140, 225692), (1292, 199140), (1360, 189183), (1520, 169269), (1615, 159312), (1938, 132760), (2040, 126122), (2280, 112846), (2584, 99570), (3230, 79656), (3319, 77520), (3876, 66380), (4080, 63061), (4560, 56423), (4845, 53104), (5168, 49785), (6460, 39828), (6638, 38760), (7752, 33190), (9690, 26552), (9957, 25840), (12920, 19914), (13276, 19380), (15504, 16595)]