90392240

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{18523}}^1$

素因数の和:18597

約数の個数: 40

約数和(自身を含む): 213618768

約数和(自身を除く): 123226528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 18523, 37046, 74092, 92615, 148184, 185230, 296368, 370460, 740920, 1129903, 1481840, 2259806, 4519612, 5649515, 9039224, 11299030, 18078448, 22598060, 45196120, 90392240]

約数ペア:

[(1, 90392240), (2, 45196120), (4, 22598060), (5, 18078448), (8, 11299030), (10, 9039224), (16, 5649515), (20, 4519612), (40, 2259806), (61, 1481840), (80, 1129903), (122, 740920), (244, 370460), (305, 296368), (488, 185230), (610, 148184), (976, 92615), (1220, 74092), (2440, 37046), (4880, 18523)]