20392000215

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{15919}}^1$

素因数の和:16076

約数の個数: 64

約数和(自身を含む): 35212492800

約数和(自身を除く): 14820492585

約数列:

[1, 3, 5, 15, 23, 47, 69, 79, 115, 141, 235, 237, 345, 395, 705, 1081, 1185, 1817, 3243, 3713, 5405, 5451, 9085, 11139, 15919, 16215, 18565, 27255, 47757, 55695, 79595, 85399, 238785, 256197, 366137, 426995, 748193, 1098411, 1257601, 1280985, 1830685, 2244579, 3740965, 3772803, 5492055, 6288005, 11222895, 17208439, 18864015, 28924823, 51625317, 59107247, 86042195, 86774469, 144624115, 177321741, 258126585, 295536235, 433872345, 886608705, 1359466681, 4078400043, 6797333405, 20392000215]

約数ペア:

[(1, 20392000215), (3, 6797333405), (5, 4078400043), (15, 1359466681), (23, 886608705), (47, 433872345), (69, 295536235), (79, 258126585), (115, 177321741), (141, 144624115), (235, 86774469), (237, 86042195), (345, 59107247), (395, 51625317), (705, 28924823), (1081, 18864015), (1185, 17208439), (1817, 11222895), (3243, 6288005), (3713, 5492055), (5405, 3772803), (5451, 3740965), (9085, 2244579), (11139, 1830685), (15919, 1280985), (16215, 1257601), (18565, 1098411), (27255, 748193), (47757, 426995), (55695, 366137), (79595, 256197), (85399, 238785)]