20091664

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:152

約数の個数: 80

約数和(自身を含む): 44193600

約数和(自身を除く): 24101936

約数列:

[1, 2, 4, 8, 16, 19, 29, 38, 43, 53, 58, 76, 86, 106, 116, 152, 172, 212, 232, 304, 344, 424, 464, 551, 688, 817, 848, 1007, 1102, 1247, 1537, 1634, 2014, 2204, 2279, 2494, 3074, 3268, 4028, 4408, 4558, 4988, 6148, 6536, 8056, 8816, 9116, 9976, 12296, 13072, 16112, 18232, 19952, 23693, 24592, 29203, 36464, 43301, 47386, 58406, 66091, 86602, 94772, 116812, 132182, 173204, 189544, 233624, 264364, 346408, 379088, 467248, 528728, 692816, 1057456, 1255729, 2511458, 5022916, 10045832, 20091664]

約数ペア:

[(1, 20091664), (2, 10045832), (4, 5022916), (8, 2511458), (16, 1255729), (19, 1057456), (29, 692816), (38, 528728), (43, 467248), (53, 379088), (58, 346408), (76, 264364), (86, 233624), (106, 189544), (116, 173204), (152, 132182), (172, 116812), (212, 94772), (232, 86602), (304, 66091), (344, 58406), (424, 47386), (464, 43301), (551, 36464), (688, 29203), (817, 24592), (848, 23693), (1007, 19952), (1102, 18232), (1247, 16112), (1537, 13072), (1634, 12296), (2014, 9976), (2204, 9116), (2279, 8816), (2494, 8056), (3074, 6536), (3268, 6148), (4028, 4988), (4408, 4558)]