81803800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{431}}^1$

素因数の和:533

約数の個数: 96

約数和(自身を含む): 208111680

約数和(自身を除く): 126307880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 73, 100, 104, 130, 146, 200, 260, 292, 325, 365, 431, 520, 584, 650, 730, 862, 949, 1300, 1460, 1724, 1825, 1898, 2155, 2600, 2920, 3448, 3650, 3796, 4310, 4745, 5603, 7300, 7592, 8620, 9490, 10775, 11206, 14600, 17240, 18980, 21550, 22412, 23725, 28015, 31463, 37960, 43100, 44824, 47450, 56030, 62926, 86200, 94900, 112060, 125852, 140075, 157315, 189800, 224120, 251704, 280150, 314630, 409019, 560300, 629260, 786575, 818038, 1120600, 1258520, 1573150, 1636076, 2045095, 3146300, 3272152, 4090190, 6292600, 8180380, 10225475, 16360760, 20450950, 40901900, 81803800]

約数ペア:

[(1, 81803800), (2, 40901900), (4, 20450950), (5, 16360760), (8, 10225475), (10, 8180380), (13, 6292600), (20, 4090190), (25, 3272152), (26, 3146300), (40, 2045095), (50, 1636076), (52, 1573150), (65, 1258520), (73, 1120600), (100, 818038), (104, 786575), (130, 629260), (146, 560300), (200, 409019), (260, 314630), (292, 280150), (325, 251704), (365, 224120), (431, 189800), (520, 157315), (584, 140075), (650, 125852), (730, 112060), (862, 94900), (949, 86200), (1300, 62926), (1460, 56030), (1724, 47450), (1825, 44824), (1898, 43100), (2155, 37960), (2600, 31463), (2920, 28015), (3448, 23725), (3650, 22412), (3796, 21550), (4310, 18980), (4745, 17240), (5603, 14600), (7300, 11206), (7592, 10775), (8620, 9490)]