15757520

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3229}}^1$

素因数の和:3303

約数の個数: 40

約数和(自身を含む): 37248360

約数和(自身を除く): 21490840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 3229, 4880, 6458, 12916, 16145, 25832, 32290, 51664, 64580, 129160, 196969, 258320, 393938, 787876, 984845, 1575752, 1969690, 3151504, 3939380, 7878760, 15757520]

約数ペア:

[(1, 15757520), (2, 7878760), (4, 3939380), (5, 3151504), (8, 1969690), (10, 1575752), (16, 984845), (20, 787876), (40, 393938), (61, 258320), (80, 196969), (122, 129160), (244, 64580), (305, 51664), (488, 32290), (610, 25832), (976, 16145), (1220, 12916), (2440, 6458), (3229, 4880)]