128427560

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1\times {\mathrm{383}}^1$

素因数の和:578

約数の個数: 64

約数和(自身を含む): 296110080

約数和(自身を除く): 167682520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 101, 166, 202, 332, 383, 404, 415, 505, 664, 766, 808, 830, 1010, 1532, 1660, 1915, 2020, 3064, 3320, 3830, 4040, 7660, 8383, 15320, 16766, 31789, 33532, 38683, 41915, 63578, 67064, 77366, 83830, 127156, 154732, 158945, 167660, 193415, 254312, 309464, 317890, 335320, 386830, 635780, 773660, 1271560, 1547320, 3210689, 6421378, 12842756, 16053445, 25685512, 32106890, 64213780, 128427560]

約数ペア:

[(1, 128427560), (2, 64213780), (4, 32106890), (5, 25685512), (8, 16053445), (10, 12842756), (20, 6421378), (40, 3210689), (83, 1547320), (101, 1271560), (166, 773660), (202, 635780), (332, 386830), (383, 335320), (404, 317890), (415, 309464), (505, 254312), (664, 193415), (766, 167660), (808, 158945), (830, 154732), (1010, 127156), (1532, 83830), (1660, 77366), (1915, 67064), (2020, 63578), (3064, 41915), (3320, 38683), (3830, 33532), (4040, 31789), (7660, 16766), (8383, 15320)]