18728900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{479}}^1$

素因数の和:533

約数の個数: 72

約数和(自身を含む): 44997120

約数和(自身を除く): 26268220

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 25, 34, 46, 50, 68, 85, 92, 100, 115, 170, 230, 340, 391, 425, 460, 479, 575, 782, 850, 958, 1150, 1564, 1700, 1916, 1955, 2300, 2395, 3910, 4790, 7820, 8143, 9580, 9775, 11017, 11975, 16286, 19550, 22034, 23950, 32572, 39100, 40715, 44068, 47900, 55085, 81430, 110170, 162860, 187289, 203575, 220340, 275425, 374578, 407150, 550850, 749156, 814300, 936445, 1101700, 1872890, 3745780, 4682225, 9364450, 18728900]

約数ペア:

[(1, 18728900), (2, 9364450), (4, 4682225), (5, 3745780), (10, 1872890), (17, 1101700), (20, 936445), (23, 814300), (25, 749156), (34, 550850), (46, 407150), (50, 374578), (68, 275425), (85, 220340), (92, 203575), (100, 187289), (115, 162860), (170, 110170), (230, 81430), (340, 55085), (391, 47900), (425, 44068), (460, 40715), (479, 39100), (575, 32572), (782, 23950), (850, 22034), (958, 19550), (1150, 16286), (1564, 11975), (1700, 11017), (1916, 9775), (1955, 9580), (2300, 8143), (2395, 7820), (3910, 4790)]