20004240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{4903}}^1$

素因数の和:4936

約数の個数: 80

約数和(自身を含む): 65674368

約数和(自身を除く): 45670128

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 4903, 9806, 14709, 19612, 24515, 29418, 39224, 49030, 58836, 73545, 78448, 83351, 98060, 117672, 147090, 166702, 196120, 235344, 250053, 294180, 333404, 392240, 416755, 500106, 588360, 666808, 833510, 1000212, 1176720, 1250265, 1333616, 1667020, 2000424, 2500530, 3334040, 4000848, 5001060, 6668080, 10002120, 20004240]

約数ペア:

[(1, 20004240), (2, 10002120), (3, 6668080), (4, 5001060), (5, 4000848), (6, 3334040), (8, 2500530), (10, 2000424), (12, 1667020), (15, 1333616), (16, 1250265), (17, 1176720), (20, 1000212), (24, 833510), (30, 666808), (34, 588360), (40, 500106), (48, 416755), (51, 392240), (60, 333404), (68, 294180), (80, 250053), (85, 235344), (102, 196120), (120, 166702), (136, 147090), (170, 117672), (204, 98060), (240, 83351), (255, 78448), (272, 73545), (340, 58836), (408, 49030), (510, 39224), (680, 29418), (816, 24515), (1020, 19612), (1360, 14709), (2040, 9806), (4080, 4903)]