20492480

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3767}}^1$

素因数の和:3801

約数の個数: 56

約数和(自身を含む): 51681888

約数和(自身を除く): 31189408

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, 3767, 5440, 7534, 15068, 18835, 30136, 37670, 60272, 64039, 75340, 120544, 128078, 150680, 241088, 256156, 301360, 320195, 512312, 602720, 640390, 1024624, 1205440, 1280780, 2049248, 2561560, 4098496, 5123120, 10246240, 20492480]

約数ペア:

[(1, 20492480), (2, 10246240), (4, 5123120), (5, 4098496), (8, 2561560), (10, 2049248), (16, 1280780), (17, 1205440), (20, 1024624), (32, 640390), (34, 602720), (40, 512312), (64, 320195), (68, 301360), (80, 256156), (85, 241088), (136, 150680), (160, 128078), (170, 120544), (272, 75340), (320, 64039), (340, 60272), (544, 37670), (680, 30136), (1088, 18835), (1360, 15068), (2720, 7534), (3767, 5440)]