19437975

素因数分解:

$3^4\times 5^2\times {\mathrm{29}}^1\times {\mathrm{331}}^1$

素因数の和:382

約数の個数: 60

約数和(自身を含む): 37359960

約数和(自身を除く): 17921985

約数列:

[1, 3, 5, 9, 15, 25, 27, 29, 45, 75, 81, 87, 135, 145, 225, 261, 331, 405, 435, 675, 725, 783, 993, 1305, 1655, 2025, 2175, 2349, 2979, 3915, 4965, 6525, 8275, 8937, 9599, 11745, 14895, 19575, 24825, 26811, 28797, 44685, 47995, 58725, 74475, 86391, 134055, 143985, 223425, 239975, 259173, 431955, 670275, 719925, 777519, 1295865, 2159775, 3887595, 6479325, 19437975]

約数ペア:

[(1, 19437975), (3, 6479325), (5, 3887595), (9, 2159775), (15, 1295865), (25, 777519), (27, 719925), (29, 670275), (45, 431955), (75, 259173), (81, 239975), (87, 223425), (135, 143985), (145, 134055), (225, 86391), (261, 74475), (331, 58725), (405, 47995), (435, 44685), (675, 28797), (725, 26811), (783, 24825), (993, 19575), (1305, 14895), (1655, 11745), (2025, 9599), (2175, 8937), (2349, 8275), (2979, 6525), (3915, 4965)]