408681728

素因数分解:

$2^8\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{331}}^1$

素因数の和:420

約数の個数: 144

約数和(自身を含む): 1026055296

約数和(自身を除く): 617373568

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 53, 56, 64, 91, 104, 106, 112, 128, 182, 208, 212, 224, 256, 331, 364, 371, 416, 424, 448, 662, 689, 728, 742, 832, 848, 896, 1324, 1378, 1456, 1484, 1664, 1696, 1792, 2317, 2648, 2756, 2912, 2968, 3328, 3392, 4303, 4634, 4823, 5296, 5512, 5824, 5936, 6784, 8606, 9268, 9646, 10592, 11024, 11648, 11872, 13568, 17212, 17543, 18536, 19292, 21184, 22048, 23296, 23744, 30121, 34424, 35086, 37072, 38584, 42368, 44096, 47488, 60242, 68848, 70172, 74144, 77168, 84736, 88192, 94976, 120484, 122801, 137696, 140344, 148288, 154336, 176384, 228059, 240968, 245602, 275392, 280688, 296576, 308672, 456118, 481936, 491204, 550784, 561376, 593152, 617344, 912236, 963872, 982408, 1101568, 1122752, 1234688, 1596413, 1824472, 1927744, 1964816, 2245504, 3192826, 3648944, 3855488, 3929632, 4491008, 6385652, 7297888, 7710976, 7859264, 12771304, 14595776, 15718528, 25542608, 29191552, 31437056, 51085216, 58383104, 102170432, 204340864, 408681728]

約数ペア:

[(1, 408681728), (2, 204340864), (4, 102170432), (7, 58383104), (8, 51085216), (13, 31437056), (14, 29191552), (16, 25542608), (26, 15718528), (28, 14595776), (32, 12771304), (52, 7859264), (53, 7710976), (56, 7297888), (64, 6385652), (91, 4491008), (104, 3929632), (106, 3855488), (112, 3648944), (128, 3192826), (182, 2245504), (208, 1964816), (212, 1927744), (224, 1824472), (256, 1596413), (331, 1234688), (364, 1122752), (371, 1101568), (416, 982408), (424, 963872), (448, 912236), (662, 617344), (689, 593152), (728, 561376), (742, 550784), (832, 491204), (848, 481936), (896, 456118), (1324, 308672), (1378, 296576), (1456, 280688), (1484, 275392), (1664, 245602), (1696, 240968), (1792, 228059), (2317, 176384), (2648, 154336), (2756, 148288), (2912, 140344), (2968, 137696), (3328, 122801), (3392, 120484), (4303, 94976), (4634, 88192), (4823, 84736), (5296, 77168), (5512, 74144), (5824, 70172), (5936, 68848), (6784, 60242), (8606, 47488), (9268, 44096), (9646, 42368), (10592, 38584), (11024, 37072), (11648, 35086), (11872, 34424), (13568, 30121), (17212, 23744), (17543, 23296), (18536, 22048), (19292, 21184)]