21700160

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3989}}^1$

素因数の和:4023

約数の個数: 56

約数和(自身を含む): 54726840

約数和(自身を除く): 33026680

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 320, 340, 544, 680, 1088, 1360, 2720, 3989, 5440, 7978, 15956, 19945, 31912, 39890, 63824, 67813, 79780, 127648, 135626, 159560, 255296, 271252, 319120, 339065, 542504, 638240, 678130, 1085008, 1276480, 1356260, 2170016, 2712520, 4340032, 5425040, 10850080, 21700160]

約数ペア:

[(1, 21700160), (2, 10850080), (4, 5425040), (5, 4340032), (8, 2712520), (10, 2170016), (16, 1356260), (17, 1276480), (20, 1085008), (32, 678130), (34, 638240), (40, 542504), (64, 339065), (68, 319120), (80, 271252), (85, 255296), (136, 159560), (160, 135626), (170, 127648), (272, 79780), (320, 67813), (340, 63824), (544, 39890), (680, 31912), (1088, 19945), (1360, 15956), (2720, 7978), (3989, 5440)]