400391936

素因数分解:

$2^8\times 7^2\times {\mathrm{59}}^1\times {\mathrm{541}}^1$

素因数の和:630

約数の個数: 108

約数和(自身を含む): 947210040

約数和(自身を除く): 546818104

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 59, 64, 98, 112, 118, 128, 196, 224, 236, 256, 392, 413, 448, 472, 541, 784, 826, 896, 944, 1082, 1568, 1652, 1792, 1888, 2164, 2891, 3136, 3304, 3776, 3787, 4328, 5782, 6272, 6608, 7552, 7574, 8656, 11564, 12544, 13216, 15104, 15148, 17312, 23128, 26432, 26509, 30296, 31919, 34624, 46256, 52864, 53018, 60592, 63838, 69248, 92512, 105728, 106036, 121184, 127676, 138496, 185024, 212072, 223433, 242368, 255352, 370048, 424144, 446866, 484736, 510704, 740096, 848288, 893732, 969472, 1021408, 1564031, 1696576, 1787464, 2042816, 3128062, 3393152, 3574928, 4085632, 6256124, 6786304, 7149856, 8171264, 12512248, 14299712, 25024496, 28599424, 50048992, 57198848, 100097984, 200195968, 400391936]

約数ペア:

[(1, 400391936), (2, 200195968), (4, 100097984), (7, 57198848), (8, 50048992), (14, 28599424), (16, 25024496), (28, 14299712), (32, 12512248), (49, 8171264), (56, 7149856), (59, 6786304), (64, 6256124), (98, 4085632), (112, 3574928), (118, 3393152), (128, 3128062), (196, 2042816), (224, 1787464), (236, 1696576), (256, 1564031), (392, 1021408), (413, 969472), (448, 893732), (472, 848288), (541, 740096), (784, 510704), (826, 484736), (896, 446866), (944, 424144), (1082, 370048), (1568, 255352), (1652, 242368), (1792, 223433), (1888, 212072), (2164, 185024), (2891, 138496), (3136, 127676), (3304, 121184), (3776, 106036), (3787, 105728), (4328, 92512), (5782, 69248), (6272, 63838), (6608, 60592), (7552, 53018), (7574, 52864), (8656, 46256), (11564, 34624), (12544, 31919), (13216, 30296), (15104, 26509), (15148, 26432), (17312, 23128)]