1988910

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1$

素因数の和:79

約数の個数: 144

約数和(自身を含む): 6722352

約数和(自身を除く): 4733442

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 30, 33, 35, 41, 42, 45, 49, 55, 63, 66, 70, 77, 82, 90, 98, 99, 105, 110, 123, 126, 147, 154, 165, 198, 205, 210, 231, 245, 246, 287, 294, 315, 330, 369, 385, 410, 441, 451, 462, 490, 495, 539, 574, 615, 630, 693, 735, 738, 770, 861, 882, 902, 990, 1078, 1155, 1230, 1353, 1386, 1435, 1470, 1617, 1722, 1845, 2009, 2205, 2255, 2310, 2583, 2695, 2706, 2870, 3157, 3234, 3465, 3690, 4018, 4059, 4305, 4410, 4510, 4851, 5166, 5390, 6027, 6314, 6765, 6930, 8085, 8118, 8610, 9471, 9702, 10045, 12054, 12915, 13530, 15785, 16170, 18081, 18942, 20090, 20295, 22099, 24255, 25830, 28413, 30135, 31570, 36162, 40590, 44198, 47355, 48510, 56826, 60270, 66297, 90405, 94710, 110495, 132594, 142065, 180810, 198891, 220990, 284130, 331485, 397782, 662970, 994455, 1988910]

約数ペア:

[(1, 1988910), (2, 994455), (3, 662970), (5, 397782), (6, 331485), (7, 284130), (9, 220990), (10, 198891), (11, 180810), (14, 142065), (15, 132594), (18, 110495), (21, 94710), (22, 90405), (30, 66297), (33, 60270), (35, 56826), (41, 48510), (42, 47355), (45, 44198), (49, 40590), (55, 36162), (63, 31570), (66, 30135), (70, 28413), (77, 25830), (82, 24255), (90, 22099), (98, 20295), (99, 20090), (105, 18942), (110, 18081), (123, 16170), (126, 15785), (147, 13530), (154, 12915), (165, 12054), (198, 10045), (205, 9702), (210, 9471), (231, 8610), (245, 8118), (246, 8085), (287, 6930), (294, 6765), (315, 6314), (330, 6027), (369, 5390), (385, 5166), (410, 4851), (441, 4510), (451, 4410), (462, 4305), (490, 4059), (495, 4018), (539, 3690), (574, 3465), (615, 3234), (630, 3157), (693, 2870), (735, 2706), (738, 2695), (770, 2583), (861, 2310), (882, 2255), (902, 2205), (990, 2009), (1078, 1845), (1155, 1722), (1230, 1617), (1353, 1470), (1386, 1435)]