400228864

素因数分解:

$2^9\times 7^3\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:135

約数の個数: 160

約数和(自身を含む): 972259200

約数和(自身を除く): 572030336

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 49, 53, 56, 64, 86, 98, 106, 112, 128, 172, 196, 212, 224, 256, 301, 343, 344, 371, 392, 424, 448, 512, 602, 686, 688, 742, 784, 848, 896, 1204, 1372, 1376, 1484, 1568, 1696, 1792, 2107, 2279, 2408, 2597, 2744, 2752, 2968, 3136, 3392, 3584, 4214, 4558, 4816, 5194, 5488, 5504, 5936, 6272, 6784, 8428, 9116, 9632, 10388, 10976, 11008, 11872, 12544, 13568, 14749, 15953, 16856, 18179, 18232, 19264, 20776, 21952, 22016, 23744, 25088, 27136, 29498, 31906, 33712, 36358, 36464, 38528, 41552, 43904, 47488, 58996, 63812, 67424, 72716, 72928, 77056, 83104, 87808, 94976, 111671, 117992, 127624, 134848, 145432, 145856, 154112, 166208, 175616, 189952, 223342, 235984, 255248, 269696, 290864, 291712, 332416, 446684, 471968, 510496, 539392, 581728, 583424, 664832, 781697, 893368, 943936, 1020992, 1078784, 1163456, 1166848, 1329664, 1563394, 1786736, 1887872, 2041984, 2326912, 3126788, 3573472, 3775744, 4083968, 4653824, 6253576, 7146944, 7551488, 8167936, 9307648, 12507152, 14293888, 25014304, 28587776, 50028608, 57175552, 100057216, 200114432, 400228864]

約数ペア:

[(1, 400228864), (2, 200114432), (4, 100057216), (7, 57175552), (8, 50028608), (14, 28587776), (16, 25014304), (28, 14293888), (32, 12507152), (43, 9307648), (49, 8167936), (53, 7551488), (56, 7146944), (64, 6253576), (86, 4653824), (98, 4083968), (106, 3775744), (112, 3573472), (128, 3126788), (172, 2326912), (196, 2041984), (212, 1887872), (224, 1786736), (256, 1563394), (301, 1329664), (343, 1166848), (344, 1163456), (371, 1078784), (392, 1020992), (424, 943936), (448, 893368), (512, 781697), (602, 664832), (686, 583424), (688, 581728), (742, 539392), (784, 510496), (848, 471968), (896, 446684), (1204, 332416), (1372, 291712), (1376, 290864), (1484, 269696), (1568, 255248), (1696, 235984), (1792, 223342), (2107, 189952), (2279, 175616), (2408, 166208), (2597, 154112), (2744, 145856), (2752, 145432), (2968, 134848), (3136, 127624), (3392, 117992), (3584, 111671), (4214, 94976), (4558, 87808), (4816, 83104), (5194, 77056), (5488, 72928), (5504, 72716), (5936, 67424), (6272, 63812), (6784, 58996), (8428, 47488), (9116, 43904), (9632, 41552), (10388, 38528), (10976, 36464), (11008, 36358), (11872, 33712), (12544, 31906), (13568, 29498), (14749, 27136), (15953, 25088), (16856, 23744), (18179, 22016), (18232, 21952), (19264, 20776)]