400808520

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{53017}}^1$

素因数の和:53044

約数の個数: 128

約数和(自身を含む): 1526918400

約数和(自身を除く): 1126109880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 3780, 7560, 53017, 106034, 159051, 212068, 265085, 318102, 371119, 424136, 477153, 530170, 636204, 742238, 795255, 954306, 1060340, 1113357, 1272408, 1431459, 1484476, 1590510, 1855595, 1908612, 2120680, 2226714, 2385765, 2862918, 2968952, 3181020, 3340071, 3711190, 3817224, 4453428, 4771530, 5566785, 5725836, 6362040, 6680142, 7157295, 7422380, 8906856, 9543060, 10020213, 11133570, 11451672, 13360284, 14314590, 14844760, 16700355, 19086120, 20040426, 22267140, 26720568, 28629180, 33400710, 40080852, 44534280, 50101065, 57258360, 66801420, 80161704, 100202130, 133602840, 200404260, 400808520]

約数ペア:

[(1, 400808520), (2, 200404260), (3, 133602840), (4, 100202130), (5, 80161704), (6, 66801420), (7, 57258360), (8, 50101065), (9, 44534280), (10, 40080852), (12, 33400710), (14, 28629180), (15, 26720568), (18, 22267140), (20, 20040426), (21, 19086120), (24, 16700355), (27, 14844760), (28, 14314590), (30, 13360284), (35, 11451672), (36, 11133570), (40, 10020213), (42, 9543060), (45, 8906856), (54, 7422380), (56, 7157295), (60, 6680142), (63, 6362040), (70, 5725836), (72, 5566785), (84, 4771530), (90, 4453428), (105, 3817224), (108, 3711190), (120, 3340071), (126, 3181020), (135, 2968952), (140, 2862918), (168, 2385765), (180, 2226714), (189, 2120680), (210, 1908612), (216, 1855595), (252, 1590510), (270, 1484476), (280, 1431459), (315, 1272408), (360, 1113357), (378, 1060340), (420, 954306), (504, 795255), (540, 742238), (630, 636204), (756, 530170), (840, 477153), (945, 424136), (1080, 371119), (1260, 318102), (1512, 265085), (1890, 212068), (2520, 159051), (3780, 106034), (7560, 53017)]