156921280

素因数分解:

$2^6\times 5^1\times {\mathrm{61}}^1\times {\mathrm{8039}}^1$

素因数の和:8117

約数の個数: 56

約数和(自身を含む): 379841760

約数和(自身を除く): 222920480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 160, 244, 305, 320, 488, 610, 976, 1220, 1952, 2440, 3904, 4880, 8039, 9760, 16078, 19520, 32156, 40195, 64312, 80390, 128624, 160780, 257248, 321560, 490379, 514496, 643120, 980758, 1286240, 1961516, 2451895, 2572480, 3923032, 4903790, 7846064, 9807580, 15692128, 19615160, 31384256, 39230320, 78460640, 156921280]

約数ペア:

[(1, 156921280), (2, 78460640), (4, 39230320), (5, 31384256), (8, 19615160), (10, 15692128), (16, 9807580), (20, 7846064), (32, 4903790), (40, 3923032), (61, 2572480), (64, 2451895), (80, 1961516), (122, 1286240), (160, 980758), (244, 643120), (305, 514496), (320, 490379), (488, 321560), (610, 257248), (976, 160780), (1220, 128624), (1952, 80390), (2440, 64312), (3904, 40195), (4880, 32156), (8039, 19520), (9760, 16078)]