20805217212

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{21661}}^1$

素因数の和:21859

約数の個数: 96

約数和(自身を含む): 53802169344

約数和(自身を除く): 32996952132

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 47, 52, 78, 94, 131, 141, 156, 188, 262, 282, 393, 524, 564, 611, 786, 1222, 1572, 1703, 1833, 2444, 3406, 3666, 5109, 6157, 6812, 7332, 10218, 12314, 18471, 20436, 21661, 24628, 36942, 43322, 64983, 73884, 80041, 86644, 129966, 160082, 240123, 259932, 281593, 320164, 480246, 563186, 844779, 960492, 1018067, 1126372, 1689558, 2036134, 2837591, 3054201, 3379116, 4072268, 5675182, 6108402, 8512773, 11350364, 12216804, 13234871, 17025546, 26469742, 34051092, 36888683, 39704613, 52939484, 73777366, 79409226, 110666049, 133366777, 147554732, 158818452, 221332098, 266733554, 400100331, 442664196, 533467108, 800200662, 1600401324, 1733768101, 3467536202, 5201304303, 6935072404, 10402608606, 20805217212]

約数ペア:

[(1, 20805217212), (2, 10402608606), (3, 6935072404), (4, 5201304303), (6, 3467536202), (12, 1733768101), (13, 1600401324), (26, 800200662), (39, 533467108), (47, 442664196), (52, 400100331), (78, 266733554), (94, 221332098), (131, 158818452), (141, 147554732), (156, 133366777), (188, 110666049), (262, 79409226), (282, 73777366), (393, 52939484), (524, 39704613), (564, 36888683), (611, 34051092), (786, 26469742), (1222, 17025546), (1572, 13234871), (1703, 12216804), (1833, 11350364), (2444, 8512773), (3406, 6108402), (3666, 5675182), (5109, 4072268), (6157, 3379116), (6812, 3054201), (7332, 2837591), (10218, 2036134), (12314, 1689558), (18471, 1126372), (20436, 1018067), (21661, 960492), (24628, 844779), (36942, 563186), (43322, 480246), (64983, 320164), (73884, 281593), (80041, 259932), (86644, 240123), (129966, 160082)]