20474256

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2281}}^1$

素因数の和:2320

約数の個数: 80

約数和(自身を含む): 61121088

約数和(自身を除く): 40646832

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 17, 22, 24, 33, 34, 44, 48, 51, 66, 68, 88, 102, 132, 136, 176, 187, 204, 264, 272, 374, 408, 528, 561, 748, 816, 1122, 1496, 2244, 2281, 2992, 4488, 4562, 6843, 8976, 9124, 13686, 18248, 25091, 27372, 36496, 38777, 50182, 54744, 75273, 77554, 100364, 109488, 116331, 150546, 155108, 200728, 232662, 301092, 310216, 401456, 426547, 465324, 602184, 620432, 853094, 930648, 1204368, 1279641, 1706188, 1861296, 2559282, 3412376, 5118564, 6824752, 10237128, 20474256]

約数ペア:

[(1, 20474256), (2, 10237128), (3, 6824752), (4, 5118564), (6, 3412376), (8, 2559282), (11, 1861296), (12, 1706188), (16, 1279641), (17, 1204368), (22, 930648), (24, 853094), (33, 620432), (34, 602184), (44, 465324), (48, 426547), (51, 401456), (66, 310216), (68, 301092), (88, 232662), (102, 200728), (132, 155108), (136, 150546), (176, 116331), (187, 109488), (204, 100364), (264, 77554), (272, 75273), (374, 54744), (408, 50182), (528, 38777), (561, 36496), (748, 27372), (816, 25091), (1122, 18248), (1496, 13686), (2244, 9124), (2281, 8976), (2992, 6843), (4488, 4562)]