644623768

素因数分解:

$2^3\times {\mathrm{37}}^2\times {\mathrm{71}}^1\times {\mathrm{829}}^1$

素因数の和:980

約数の個数: 48

約数和(自身を含む): 1261234800

約数和(自身を除く): 616611032

約数列:

[1, 2, 4, 8, 37, 71, 74, 142, 148, 284, 296, 568, 829, 1369, 1658, 2627, 2738, 3316, 5254, 5476, 6632, 10508, 10952, 21016, 30673, 58859, 61346, 97199, 117718, 122692, 194398, 235436, 245384, 388796, 470872, 777592, 1134901, 2177783, 2269802, 4355566, 4539604, 8711132, 9079208, 17422264, 80577971, 161155942, 322311884, 644623768]

約数ペア:

[(1, 644623768), (2, 322311884), (4, 161155942), (8, 80577971), (37, 17422264), (71, 9079208), (74, 8711132), (142, 4539604), (148, 4355566), (284, 2269802), (296, 2177783), (568, 1134901), (829, 777592), (1369, 470872), (1658, 388796), (2627, 245384), (2738, 235436), (3316, 194398), (5254, 122692), (5476, 117718), (6632, 97199), (10508, 61346), (10952, 58859), (21016, 30673)]