28561664

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:167

約数の個数: 72

約数和(自身を含む): 60829440

約数和(自身を除く): 32267776

約数列:

[1, 2, 4, 8, 16, 31, 32, 59, 61, 62, 64, 118, 122, 124, 128, 236, 244, 248, 256, 472, 488, 496, 944, 976, 992, 1829, 1888, 1891, 1952, 1984, 3599, 3658, 3776, 3782, 3904, 3968, 7198, 7316, 7552, 7564, 7808, 7936, 14396, 14632, 15104, 15128, 15616, 28792, 29264, 30256, 57584, 58528, 60512, 111569, 115168, 117056, 121024, 223138, 230336, 234112, 242048, 446276, 460672, 468224, 484096, 892552, 921344, 1785104, 3570208, 7140416, 14280832, 28561664]

約数ペア:

[(1, 28561664), (2, 14280832), (4, 7140416), (8, 3570208), (16, 1785104), (31, 921344), (32, 892552), (59, 484096), (61, 468224), (62, 460672), (64, 446276), (118, 242048), (122, 234112), (124, 230336), (128, 223138), (236, 121024), (244, 117056), (248, 115168), (256, 111569), (472, 60512), (488, 58528), (496, 57584), (944, 30256), (976, 29264), (992, 28792), (1829, 15616), (1888, 15128), (1891, 15104), (1952, 14632), (1984, 14396), (3599, 7936), (3658, 7808), (3776, 7564), (3782, 7552), (3904, 7316), (3968, 7198)]