388655820

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{34273}}^1$

素因数の和:34301

約数の個数: 120

約数和(自身を含む): 1393443744

約数和(自身を除く): 1004787924

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 405, 420, 540, 567, 630, 756, 810, 945, 1134, 1260, 1620, 1890, 2268, 2835, 3780, 5670, 11340, 34273, 68546, 102819, 137092, 171365, 205638, 239911, 308457, 342730, 411276, 479822, 514095, 616914, 685460, 719733, 925371, 959644, 1028190, 1199555, 1233828, 1439466, 1542285, 1850742, 2056380, 2159199, 2399110, 2776113, 2878932, 3084570, 3598665, 3701484, 4318398, 4626855, 4798220, 5552226, 6169140, 6477597, 7197330, 8636796, 9253710, 10795995, 11104452, 12955194, 13880565, 14394660, 18507420, 19432791, 21591990, 25910388, 27761130, 32387985, 38865582, 43183980, 55522260, 64775970, 77731164, 97163955, 129551940, 194327910, 388655820]

約数ペア:

[(1, 388655820), (2, 194327910), (3, 129551940), (4, 97163955), (5, 77731164), (6, 64775970), (7, 55522260), (9, 43183980), (10, 38865582), (12, 32387985), (14, 27761130), (15, 25910388), (18, 21591990), (20, 19432791), (21, 18507420), (27, 14394660), (28, 13880565), (30, 12955194), (35, 11104452), (36, 10795995), (42, 9253710), (45, 8636796), (54, 7197330), (60, 6477597), (63, 6169140), (70, 5552226), (81, 4798220), (84, 4626855), (90, 4318398), (105, 3701484), (108, 3598665), (126, 3084570), (135, 2878932), (140, 2776113), (162, 2399110), (180, 2159199), (189, 2056380), (210, 1850742), (252, 1542285), (270, 1439466), (315, 1233828), (324, 1199555), (378, 1028190), (405, 959644), (420, 925371), (540, 719733), (567, 685460), (630, 616914), (756, 514095), (810, 479822), (945, 411276), (1134, 342730), (1260, 308457), (1620, 239911), (1890, 205638), (2268, 171365), (2835, 137092), (3780, 102819), (5670, 68546), (11340, 34273)]