20165566780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{293}}^1\times {\mathrm{1303}}^1$

素因数の和:1763

約数の個数: 96

約数和(自身を含む): 45085017600

約数和(自身を除く): 24919450820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 139, 190, 278, 293, 380, 556, 586, 695, 1172, 1303, 1390, 1465, 2606, 2641, 2780, 2930, 5212, 5282, 5567, 5860, 6515, 10564, 11134, 13030, 13205, 22268, 24757, 26060, 26410, 27835, 40727, 49514, 52820, 55670, 81454, 99028, 111340, 123785, 162908, 181117, 203635, 247570, 362234, 381779, 407270, 495140, 724468, 763558, 773813, 814540, 905585, 1527116, 1547626, 1811170, 1908895, 3095252, 3441223, 3622340, 3817790, 3869065, 6882446, 7253801, 7635580, 7738130, 13764892, 14507602, 15476260, 17206115, 29015204, 34412230, 36269005, 53067281, 68824460, 72538010, 106134562, 145076020, 212269124, 265336405, 530672810, 1008278339, 1061345620, 2016556678, 4033113356, 5041391695, 10082783390, 20165566780]

約数ペア:

[(1, 20165566780), (2, 10082783390), (4, 5041391695), (5, 4033113356), (10, 2016556678), (19, 1061345620), (20, 1008278339), (38, 530672810), (76, 265336405), (95, 212269124), (139, 145076020), (190, 106134562), (278, 72538010), (293, 68824460), (380, 53067281), (556, 36269005), (586, 34412230), (695, 29015204), (1172, 17206115), (1303, 15476260), (1390, 14507602), (1465, 13764892), (2606, 7738130), (2641, 7635580), (2780, 7253801), (2930, 6882446), (5212, 3869065), (5282, 3817790), (5567, 3622340), (5860, 3441223), (6515, 3095252), (10564, 1908895), (11134, 1811170), (13030, 1547626), (13205, 1527116), (22268, 905585), (24757, 814540), (26060, 773813), (26410, 763558), (27835, 724468), (40727, 495140), (49514, 407270), (52820, 381779), (55670, 362234), (81454, 247570), (99028, 203635), (111340, 181117), (123785, 162908)]