391866720

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{16661}}^1$

素因数の和:16693

約数の個数: 144

約数和(自身を含む): 1435997808

約数和(自身を除く): 1044131088

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 196, 210, 224, 240, 245, 280, 294, 336, 392, 420, 480, 490, 560, 588, 672, 735, 784, 840, 980, 1120, 1176, 1470, 1568, 1680, 1960, 2352, 2940, 3360, 3920, 4704, 5880, 7840, 11760, 16661, 23520, 33322, 49983, 66644, 83305, 99966, 116627, 133288, 166610, 199932, 233254, 249915, 266576, 333220, 349881, 399864, 466508, 499830, 533152, 583135, 666440, 699762, 799728, 816389, 933016, 999660, 1166270, 1332880, 1399524, 1599456, 1632778, 1749405, 1866032, 1999320, 2332540, 2449167, 2665760, 2799048, 3265556, 3498810, 3732064, 3998640, 4081945, 4665080, 4898334, 5598096, 6531112, 6997620, 7997280, 8163890, 9330160, 9796668, 11196192, 12245835, 13062224, 13995240, 16327780, 18660320, 19593336, 24491670, 26124448, 27990480, 32655560, 39186672, 48983340, 55980960, 65311120, 78373344, 97966680, 130622240, 195933360, 391866720]

約数ペア:

[(1, 391866720), (2, 195933360), (3, 130622240), (4, 97966680), (5, 78373344), (6, 65311120), (7, 55980960), (8, 48983340), (10, 39186672), (12, 32655560), (14, 27990480), (15, 26124448), (16, 24491670), (20, 19593336), (21, 18660320), (24, 16327780), (28, 13995240), (30, 13062224), (32, 12245835), (35, 11196192), (40, 9796668), (42, 9330160), (48, 8163890), (49, 7997280), (56, 6997620), (60, 6531112), (70, 5598096), (80, 4898334), (84, 4665080), (96, 4081945), (98, 3998640), (105, 3732064), (112, 3498810), (120, 3265556), (140, 2799048), (147, 2665760), (160, 2449167), (168, 2332540), (196, 1999320), (210, 1866032), (224, 1749405), (240, 1632778), (245, 1599456), (280, 1399524), (294, 1332880), (336, 1166270), (392, 999660), (420, 933016), (480, 816389), (490, 799728), (560, 699762), (588, 666440), (672, 583135), (735, 533152), (784, 499830), (840, 466508), (980, 399864), (1120, 349881), (1176, 333220), (1470, 266576), (1568, 249915), (1680, 233254), (1960, 199932), (2352, 166610), (2940, 133288), (3360, 116627), (3920, 99966), (4704, 83305), (5880, 66644), (7840, 49983), (11760, 33322), (16661, 23520)]