20976179900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{343309}}^1$

素因数の和:343383

約数の個数: 72

約数和(自身を含む): 50062837440

約数和(自身を除く): 29086657540

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 47, 50, 52, 65, 94, 100, 130, 188, 235, 260, 325, 470, 611, 650, 940, 1175, 1222, 1300, 2350, 2444, 3055, 4700, 6110, 12220, 15275, 30550, 61100, 343309, 686618, 1373236, 1716545, 3433090, 4463017, 6866180, 8582725, 8926034, 16135523, 17165450, 17852068, 22315085, 32271046, 34330900, 44630170, 64542092, 80677615, 89260340, 111575425, 161355230, 209761799, 223150850, 322710460, 403388075, 419523598, 446301700, 806776150, 839047196, 1048808995, 1613552300, 2097617990, 4195235980, 5244044975, 10488089950, 20976179900]

約数ペア:

[(1, 20976179900), (2, 10488089950), (4, 5244044975), (5, 4195235980), (10, 2097617990), (13, 1613552300), (20, 1048808995), (25, 839047196), (26, 806776150), (47, 446301700), (50, 419523598), (52, 403388075), (65, 322710460), (94, 223150850), (100, 209761799), (130, 161355230), (188, 111575425), (235, 89260340), (260, 80677615), (325, 64542092), (470, 44630170), (611, 34330900), (650, 32271046), (940, 22315085), (1175, 17852068), (1222, 17165450), (1300, 16135523), (2350, 8926034), (2444, 8582725), (3055, 6866180), (4700, 4463017), (6110, 3433090), (12220, 1716545), (15275, 1373236), (30550, 686618), (61100, 343309)]