31480340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2239}}^1$

素因数の和:2304

約数の個数: 48

約数和(自身を含む): 71500800

約数和(自身を除く): 40020460

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 95, 148, 185, 190, 370, 380, 703, 740, 1406, 2239, 2812, 3515, 4478, 7030, 8956, 11195, 14060, 22390, 42541, 44780, 82843, 85082, 165686, 170164, 212705, 331372, 414215, 425410, 828430, 850820, 1574017, 1656860, 3148034, 6296068, 7870085, 15740170, 31480340]

約数ペア:

[(1, 31480340), (2, 15740170), (4, 7870085), (5, 6296068), (10, 3148034), (19, 1656860), (20, 1574017), (37, 850820), (38, 828430), (74, 425410), (76, 414215), (95, 331372), (148, 212705), (185, 170164), (190, 165686), (370, 85082), (380, 82843), (703, 44780), (740, 42541), (1406, 22390), (2239, 14060), (2812, 11195), (3515, 8956), (4478, 7030)]