20917632

素因数分解:

$2^7\times 3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:144

約数の個数: 128

約数和(自身を含む): 60710400

約数和(自身を除く): 39792768

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 32, 38, 47, 48, 57, 61, 64, 76, 94, 96, 114, 122, 128, 141, 152, 183, 188, 192, 228, 244, 282, 304, 366, 376, 384, 456, 488, 564, 608, 732, 752, 893, 912, 976, 1128, 1159, 1216, 1464, 1504, 1786, 1824, 1952, 2256, 2318, 2432, 2679, 2867, 2928, 3008, 3477, 3572, 3648, 3904, 4512, 4636, 5358, 5734, 5856, 6016, 6954, 7144, 7296, 7808, 8601, 9024, 9272, 10716, 11468, 11712, 13908, 14288, 17202, 18048, 18544, 21432, 22936, 23424, 27816, 28576, 34404, 37088, 42864, 45872, 54473, 55632, 57152, 68808, 74176, 85728, 91744, 108946, 111264, 114304, 137616, 148352, 163419, 171456, 183488, 217892, 222528, 275232, 326838, 342912, 366976, 435784, 445056, 550464, 653676, 871568, 1100928, 1307352, 1743136, 2614704, 3486272, 5229408, 6972544, 10458816, 20917632]

約数ペア:

[(1, 20917632), (2, 10458816), (3, 6972544), (4, 5229408), (6, 3486272), (8, 2614704), (12, 1743136), (16, 1307352), (19, 1100928), (24, 871568), (32, 653676), (38, 550464), (47, 445056), (48, 435784), (57, 366976), (61, 342912), (64, 326838), (76, 275232), (94, 222528), (96, 217892), (114, 183488), (122, 171456), (128, 163419), (141, 148352), (152, 137616), (183, 114304), (188, 111264), (192, 108946), (228, 91744), (244, 85728), (282, 74176), (304, 68808), (366, 57152), (376, 55632), (384, 54473), (456, 45872), (488, 42864), (564, 37088), (608, 34404), (732, 28576), (752, 27816), (893, 23424), (912, 22936), (976, 21432), (1128, 18544), (1159, 18048), (1216, 17202), (1464, 14288), (1504, 13908), (1786, 11712), (1824, 11468), (1952, 10716), (2256, 9272), (2318, 9024), (2432, 8601), (2679, 7808), (2867, 7296), (2928, 7144), (3008, 6954), (3477, 6016), (3572, 5856), (3648, 5734), (3904, 5358), (4512, 4636)]