19905270

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1231}}^1$

素因数の和:1266

約数の個数: 96

約数和(自身を含む): 60673536

約数和(自身を除く): 40768266

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 42, 49, 55, 66, 70, 77, 98, 105, 110, 147, 154, 165, 210, 231, 245, 294, 330, 385, 462, 490, 539, 735, 770, 1078, 1155, 1231, 1470, 1617, 2310, 2462, 2695, 3234, 3693, 5390, 6155, 7386, 8085, 8617, 12310, 13541, 16170, 17234, 18465, 25851, 27082, 36930, 40623, 43085, 51702, 60319, 67705, 81246, 86170, 94787, 120638, 129255, 135410, 180957, 189574, 203115, 258510, 284361, 301595, 361914, 406230, 473935, 568722, 603190, 663509, 904785, 947870, 1327018, 1421805, 1809570, 1990527, 2843610, 3317545, 3981054, 6635090, 9952635, 19905270]

約数ペア:

[(1, 19905270), (2, 9952635), (3, 6635090), (5, 3981054), (6, 3317545), (7, 2843610), (10, 1990527), (11, 1809570), (14, 1421805), (15, 1327018), (21, 947870), (22, 904785), (30, 663509), (33, 603190), (35, 568722), (42, 473935), (49, 406230), (55, 361914), (66, 301595), (70, 284361), (77, 258510), (98, 203115), (105, 189574), (110, 180957), (147, 135410), (154, 129255), (165, 120638), (210, 94787), (231, 86170), (245, 81246), (294, 67705), (330, 60319), (385, 51702), (462, 43085), (490, 40623), (539, 36930), (735, 27082), (770, 25851), (1078, 18465), (1155, 17234), (1231, 16170), (1470, 13541), (1617, 12310), (2310, 8617), (2462, 8085), (2695, 7386), (3234, 6155), (3693, 5390)]