388635728

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{3391}}^1$

素因数の和:3460

約数の個数: 80

約数和(自身を含む): 883276800

約数和(自身を除く): 494641072

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 29, 38, 52, 58, 76, 104, 116, 152, 208, 232, 247, 304, 377, 464, 494, 551, 754, 988, 1102, 1508, 1976, 2204, 3016, 3391, 3952, 4408, 6032, 6782, 7163, 8816, 13564, 14326, 27128, 28652, 44083, 54256, 57304, 64429, 88166, 98339, 114608, 128858, 176332, 196678, 257716, 352664, 393356, 515432, 705328, 786712, 837577, 1030864, 1278407, 1573424, 1675154, 1868441, 2556814, 3350308, 3736882, 5113628, 6700616, 7473764, 10227256, 13401232, 14947528, 20454512, 24289733, 29895056, 48579466, 97158932, 194317864, 388635728]

約数ペア:

[(1, 388635728), (2, 194317864), (4, 97158932), (8, 48579466), (13, 29895056), (16, 24289733), (19, 20454512), (26, 14947528), (29, 13401232), (38, 10227256), (52, 7473764), (58, 6700616), (76, 5113628), (104, 3736882), (116, 3350308), (152, 2556814), (208, 1868441), (232, 1675154), (247, 1573424), (304, 1278407), (377, 1030864), (464, 837577), (494, 786712), (551, 705328), (754, 515432), (988, 393356), (1102, 352664), (1508, 257716), (1976, 196678), (2204, 176332), (3016, 128858), (3391, 114608), (3952, 98339), (4408, 88166), (6032, 64429), (6782, 57304), (7163, 54256), (8816, 44083), (13564, 28652), (14326, 27128)]