51150320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{359}}^1$

素因数の和:522

約数の個数: 80

約数和(自身を含む): 129366720

約数和(自身を除く): 78216400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 137, 208, 260, 274, 359, 520, 548, 685, 718, 1040, 1096, 1370, 1436, 1781, 1795, 2192, 2740, 2872, 3562, 3590, 4667, 5480, 5744, 7124, 7180, 8905, 9334, 10960, 14248, 14360, 17810, 18668, 23335, 28496, 28720, 35620, 37336, 46670, 49183, 71240, 74672, 93340, 98366, 142480, 186680, 196732, 245915, 373360, 393464, 491830, 639379, 786928, 983660, 1278758, 1967320, 2557516, 3196895, 3934640, 5115032, 6393790, 10230064, 12787580, 25575160, 51150320]

約数ペア:

[(1, 51150320), (2, 25575160), (4, 12787580), (5, 10230064), (8, 6393790), (10, 5115032), (13, 3934640), (16, 3196895), (20, 2557516), (26, 1967320), (40, 1278758), (52, 983660), (65, 786928), (80, 639379), (104, 491830), (130, 393464), (137, 373360), (208, 245915), (260, 196732), (274, 186680), (359, 142480), (520, 98366), (548, 93340), (685, 74672), (718, 71240), (1040, 49183), (1096, 46670), (1370, 37336), (1436, 35620), (1781, 28720), (1795, 28496), (2192, 23335), (2740, 18668), (2872, 17810), (3562, 14360), (3590, 14248), (4667, 10960), (5480, 9334), (5744, 8905), (7124, 7180)]