39994780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{1103}}^1$

素因数の和:1163

約数の個数: 72

約数和(自身を含む): 100433088

約数和(自身を除く): 60438308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 49, 70, 74, 98, 140, 148, 185, 196, 245, 259, 370, 490, 518, 740, 980, 1036, 1103, 1295, 1813, 2206, 2590, 3626, 4412, 5180, 5515, 7252, 7721, 9065, 11030, 15442, 18130, 22060, 30884, 36260, 38605, 40811, 54047, 77210, 81622, 108094, 154420, 163244, 204055, 216188, 270235, 285677, 408110, 540470, 571354, 816220, 1080940, 1142708, 1428385, 1999739, 2856770, 3999478, 5713540, 7998956, 9998695, 19997390, 39994780]

約数ペア:

[(1, 39994780), (2, 19997390), (4, 9998695), (5, 7998956), (7, 5713540), (10, 3999478), (14, 2856770), (20, 1999739), (28, 1428385), (35, 1142708), (37, 1080940), (49, 816220), (70, 571354), (74, 540470), (98, 408110), (140, 285677), (148, 270235), (185, 216188), (196, 204055), (245, 163244), (259, 154420), (370, 108094), (490, 81622), (518, 77210), (740, 54047), (980, 40811), (1036, 38605), (1103, 36260), (1295, 30884), (1813, 22060), (2206, 18130), (2590, 15442), (3626, 11030), (4412, 9065), (5180, 7721), (5515, 7252)]