18545940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{359}}^1$

素因数の和:422

約数の個数: 144

約数和(自身を含む): 66044160

約数和(自身を除く): 47498220

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 41, 42, 45, 60, 63, 70, 82, 84, 90, 105, 123, 126, 140, 164, 180, 205, 210, 246, 252, 287, 315, 359, 369, 410, 420, 492, 574, 615, 630, 718, 738, 820, 861, 1077, 1148, 1230, 1260, 1435, 1436, 1476, 1722, 1795, 1845, 2154, 2460, 2513, 2583, 2870, 3231, 3444, 3590, 3690, 4305, 4308, 5026, 5166, 5385, 5740, 6462, 7180, 7380, 7539, 8610, 10052, 10332, 10770, 12565, 12915, 12924, 14719, 15078, 16155, 17220, 21540, 22617, 25130, 25830, 29438, 30156, 32310, 37695, 44157, 45234, 50260, 51660, 58876, 64620, 73595, 75390, 88314, 90468, 103033, 113085, 132471, 147190, 150780, 176628, 206066, 220785, 226170, 264942, 294380, 309099, 412132, 441570, 452340, 515165, 529884, 618198, 662355, 883140, 927297, 1030330, 1236396, 1324710, 1545495, 1854594, 2060660, 2649420, 3090990, 3709188, 4636485, 6181980, 9272970, 18545940]

約数ペア:

[(1, 18545940), (2, 9272970), (3, 6181980), (4, 4636485), (5, 3709188), (6, 3090990), (7, 2649420), (9, 2060660), (10, 1854594), (12, 1545495), (14, 1324710), (15, 1236396), (18, 1030330), (20, 927297), (21, 883140), (28, 662355), (30, 618198), (35, 529884), (36, 515165), (41, 452340), (42, 441570), (45, 412132), (60, 309099), (63, 294380), (70, 264942), (82, 226170), (84, 220785), (90, 206066), (105, 176628), (123, 150780), (126, 147190), (140, 132471), (164, 113085), (180, 103033), (205, 90468), (210, 88314), (246, 75390), (252, 73595), (287, 64620), (315, 58876), (359, 51660), (369, 50260), (410, 45234), (420, 44157), (492, 37695), (574, 32310), (615, 30156), (630, 29438), (718, 25830), (738, 25130), (820, 22617), (861, 21540), (1077, 17220), (1148, 16155), (1230, 15078), (1260, 14719), (1435, 12924), (1436, 12915), (1476, 12565), (1722, 10770), (1795, 10332), (1845, 10052), (2154, 8610), (2460, 7539), (2513, 7380), (2583, 7180), (2870, 6462), (3231, 5740), (3444, 5385), (3590, 5166), (3690, 5026), (4305, 4308)]