20181281718

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{44357}}^1$

素因数の和:44701

約数の個数: 64

約数和(自身を含む): 45905207040

約数和(自身を除く): 25723925322

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 57, 78, 114, 247, 307, 494, 614, 741, 921, 1482, 1842, 3991, 5833, 7982, 11666, 11973, 17499, 23946, 34998, 44357, 75829, 88714, 133071, 151658, 227487, 266142, 454974, 576641, 842783, 1153282, 1685566, 1729923, 2528349, 3459846, 5056698, 10956179, 13617599, 21912358, 27235198, 32868537, 40852797, 65737074, 81705594, 177028787, 258734381, 354057574, 517468762, 531086361, 776203143, 1062172722, 1552406286, 3363546953, 6727093906, 10090640859, 20181281718]

約数ペア:

[(1, 20181281718), (2, 10090640859), (3, 6727093906), (6, 3363546953), (13, 1552406286), (19, 1062172722), (26, 776203143), (38, 531086361), (39, 517468762), (57, 354057574), (78, 258734381), (114, 177028787), (247, 81705594), (307, 65737074), (494, 40852797), (614, 32868537), (741, 27235198), (921, 21912358), (1482, 13617599), (1842, 10956179), (3991, 5056698), (5833, 3459846), (7982, 2528349), (11666, 1729923), (11973, 1685566), (17499, 1153282), (23946, 842783), (34998, 576641), (44357, 454974), (75829, 266142), (88714, 227487), (133071, 151658)]