218912490

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{307}}^1$

素因数の和:481

約数の個数: 128

約数和(自身を含む): 620928000

約数和(自身を除く): 402015510

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 38, 45, 54, 57, 90, 95, 114, 135, 139, 171, 190, 270, 278, 285, 307, 342, 417, 513, 570, 614, 695, 834, 855, 921, 1026, 1251, 1390, 1535, 1710, 1842, 2085, 2502, 2565, 2641, 2763, 3070, 3753, 4170, 4605, 5130, 5282, 5526, 5833, 6255, 7506, 7923, 8289, 9210, 11666, 12510, 13205, 13815, 15846, 16578, 17499, 18765, 23769, 26410, 27630, 29165, 34998, 37530, 39615, 41445, 42673, 47538, 52497, 58330, 71307, 79230, 82890, 85346, 87495, 104994, 118845, 128019, 142614, 157491, 174990, 213365, 237690, 256038, 262485, 314982, 356535, 384057, 426730, 524970, 640095, 713070, 768114, 787455, 810787, 1152171, 1280190, 1574910, 1621574, 1920285, 2304342, 2432361, 3840570, 4053935, 4864722, 5760855, 7297083, 8107870, 11521710, 12161805, 14594166, 21891249, 24323610, 36485415, 43782498, 72970830, 109456245, 218912490]

約数ペア:

[(1, 218912490), (2, 109456245), (3, 72970830), (5, 43782498), (6, 36485415), (9, 24323610), (10, 21891249), (15, 14594166), (18, 12161805), (19, 11521710), (27, 8107870), (30, 7297083), (38, 5760855), (45, 4864722), (54, 4053935), (57, 3840570), (90, 2432361), (95, 2304342), (114, 1920285), (135, 1621574), (139, 1574910), (171, 1280190), (190, 1152171), (270, 810787), (278, 787455), (285, 768114), (307, 713070), (342, 640095), (417, 524970), (513, 426730), (570, 384057), (614, 356535), (695, 314982), (834, 262485), (855, 256038), (921, 237690), (1026, 213365), (1251, 174990), (1390, 157491), (1535, 142614), (1710, 128019), (1842, 118845), (2085, 104994), (2502, 87495), (2565, 85346), (2641, 82890), (2763, 79230), (3070, 71307), (3753, 58330), (4170, 52497), (4605, 47538), (5130, 42673), (5282, 41445), (5526, 39615), (5833, 37530), (6255, 34998), (7506, 29165), (7923, 27630), (8289, 26410), (9210, 23769), (11666, 18765), (12510, 17499), (13205, 16578), (13815, 15846)]