78297160

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{32089}}^1$

素因数の和:32161

約数の個数: 32

約数和(自身を含む): 179062200

約数和(自身を除く): 100765040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 32089, 64178, 128356, 160445, 256712, 320890, 641780, 1283560, 1957429, 3914858, 7829716, 9787145, 15659432, 19574290, 39148580, 78297160]

約数ペア:

[(1, 78297160), (2, 39148580), (4, 19574290), (5, 15659432), (8, 9787145), (10, 7829716), (20, 3914858), (40, 1957429), (61, 1283560), (122, 641780), (244, 320890), (305, 256712), (488, 160445), (610, 128356), (1220, 64178), (2440, 32089)]