161488120

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1\times {\mathrm{383}}^1$

素因数の和:604

約数の個数: 64

約数和(自身を含む): 371589120

約数和(自身を除く): 210101000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 127, 166, 254, 332, 383, 415, 508, 635, 664, 766, 830, 1016, 1270, 1532, 1660, 1915, 2540, 3064, 3320, 3830, 5080, 7660, 10541, 15320, 21082, 31789, 42164, 48641, 52705, 63578, 84328, 97282, 105410, 127156, 158945, 194564, 210820, 243205, 254312, 317890, 389128, 421640, 486410, 635780, 972820, 1271560, 1945640, 4037203, 8074406, 16148812, 20186015, 32297624, 40372030, 80744060, 161488120]

約数ペア:

[(1, 161488120), (2, 80744060), (4, 40372030), (5, 32297624), (8, 20186015), (10, 16148812), (20, 8074406), (40, 4037203), (83, 1945640), (127, 1271560), (166, 972820), (254, 635780), (332, 486410), (383, 421640), (415, 389128), (508, 317890), (635, 254312), (664, 243205), (766, 210820), (830, 194564), (1016, 158945), (1270, 127156), (1532, 105410), (1660, 97282), (1915, 84328), (2540, 63578), (3064, 52705), (3320, 48641), (3830, 42164), (5080, 31789), (7660, 21082), (10541, 15320)]