389997960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{6871}}^1$

素因数の和:6939

約数の個数: 128

約数和(自身を含む): 1306229760

約数和(自身を除く): 916231800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 43, 44, 55, 60, 66, 86, 88, 110, 120, 129, 132, 165, 172, 215, 220, 258, 264, 330, 344, 430, 440, 473, 516, 645, 660, 860, 946, 1032, 1290, 1320, 1419, 1720, 1892, 2365, 2580, 2838, 3784, 4730, 5160, 5676, 6871, 7095, 9460, 11352, 13742, 14190, 18920, 20613, 27484, 28380, 34355, 41226, 54968, 56760, 68710, 75581, 82452, 103065, 137420, 151162, 164904, 206130, 226743, 274840, 295453, 302324, 377905, 412260, 453486, 590906, 604648, 755810, 824520, 886359, 906972, 1133715, 1181812, 1477265, 1511620, 1772718, 1813944, 2267430, 2363624, 2954530, 3023240, 3249983, 3545436, 4431795, 4534860, 5909060, 6499966, 7090872, 8863590, 9069720, 9749949, 11818120, 12999932, 16249915, 17727180, 19499898, 25999864, 32499830, 35454360, 38999796, 48749745, 64999660, 77999592, 97499490, 129999320, 194998980, 389997960]

約数ペア:

[(1, 389997960), (2, 194998980), (3, 129999320), (4, 97499490), (5, 77999592), (6, 64999660), (8, 48749745), (10, 38999796), (11, 35454360), (12, 32499830), (15, 25999864), (20, 19499898), (22, 17727180), (24, 16249915), (30, 12999932), (33, 11818120), (40, 9749949), (43, 9069720), (44, 8863590), (55, 7090872), (60, 6499966), (66, 5909060), (86, 4534860), (88, 4431795), (110, 3545436), (120, 3249983), (129, 3023240), (132, 2954530), (165, 2363624), (172, 2267430), (215, 1813944), (220, 1772718), (258, 1511620), (264, 1477265), (330, 1181812), (344, 1133715), (430, 906972), (440, 886359), (473, 824520), (516, 755810), (645, 604648), (660, 590906), (860, 453486), (946, 412260), (1032, 377905), (1290, 302324), (1320, 295453), (1419, 274840), (1720, 226743), (1892, 206130), (2365, 164904), (2580, 151162), (2838, 137420), (3784, 103065), (4730, 82452), (5160, 75581), (5676, 68710), (6871, 56760), (7095, 54968), (9460, 41226), (11352, 34355), (13742, 28380), (14190, 27484), (18920, 20613)]