2018291720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1427}}^1\times {\mathrm{1861}}^1$

素因数の和:3318

約数の個数: 64

約数和(自身を含む): 4786084800

約数和(自身を除く): 2767793080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 1427, 1861, 2854, 3722, 5708, 7135, 7444, 9305, 11416, 14270, 14888, 18610, 27113, 28540, 35359, 37220, 54226, 57080, 70718, 74440, 108452, 135565, 141436, 176795, 216904, 271130, 282872, 353590, 542260, 707180, 1084520, 1414360, 2655647, 5311294, 10622588, 13278235, 21245176, 26556470, 50457293, 53112940, 100914586, 106225880, 201829172, 252286465, 403658344, 504572930, 1009145860, 2018291720]

約数ペア:

[(1, 2018291720), (2, 1009145860), (4, 504572930), (5, 403658344), (8, 252286465), (10, 201829172), (19, 106225880), (20, 100914586), (38, 53112940), (40, 50457293), (76, 26556470), (95, 21245176), (152, 13278235), (190, 10622588), (380, 5311294), (760, 2655647), (1427, 1414360), (1861, 1084520), (2854, 707180), (3722, 542260), (5708, 353590), (7135, 282872), (7444, 271130), (9305, 216904), (11416, 176795), (14270, 141436), (14888, 135565), (18610, 108452), (27113, 74440), (28540, 70718), (35359, 57080), (37220, 54226)]