18747922544

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{653}}^1\times {\mathrm{1423}}^1$

素因数の和:2194

約数の個数: 80

約数和(自身を含む): 39609881472

約数和(自身を除く): 20861958928

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 97, 104, 194, 208, 388, 653, 776, 1261, 1306, 1423, 1552, 2522, 2612, 2846, 5044, 5224, 5692, 8489, 10088, 10448, 11384, 16978, 18499, 20176, 22768, 33956, 36998, 63341, 67912, 73996, 126682, 135824, 138031, 147992, 253364, 276062, 295984, 506728, 552124, 823433, 929219, 1013456, 1104248, 1646866, 1794403, 1858438, 2208496, 3293732, 3588806, 3716876, 6587464, 7177612, 7433752, 12079847, 13174928, 14355224, 14867504, 24159694, 28710448, 48319388, 90134243, 96638776, 180268486, 193277552, 360536972, 721073944, 1171745159, 1442147888, 2343490318, 4686980636, 9373961272, 18747922544]

約数ペア:

[(1, 18747922544), (2, 9373961272), (4, 4686980636), (8, 2343490318), (13, 1442147888), (16, 1171745159), (26, 721073944), (52, 360536972), (97, 193277552), (104, 180268486), (194, 96638776), (208, 90134243), (388, 48319388), (653, 28710448), (776, 24159694), (1261, 14867504), (1306, 14355224), (1423, 13174928), (1552, 12079847), (2522, 7433752), (2612, 7177612), (2846, 6587464), (5044, 3716876), (5224, 3588806), (5692, 3293732), (8489, 2208496), (10088, 1858438), (10448, 1794403), (11384, 1646866), (16978, 1104248), (18499, 1013456), (20176, 929219), (22768, 823433), (33956, 552124), (36998, 506728), (63341, 295984), (67912, 276062), (73996, 253364), (126682, 147992), (135824, 138031)]