79102120

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{347}}^1$

素因数の和:538

約数の個数: 64

約数和(自身を含む): 184161600

約数和(自身を除く): 105059480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 139, 164, 205, 278, 328, 347, 410, 556, 694, 695, 820, 1112, 1388, 1390, 1640, 1735, 2776, 2780, 3470, 5560, 5699, 6940, 11398, 13880, 14227, 22796, 28454, 28495, 45592, 48233, 56908, 56990, 71135, 96466, 113816, 113980, 142270, 192932, 227960, 241165, 284540, 385864, 482330, 569080, 964660, 1929320, 1977553, 3955106, 7910212, 9887765, 15820424, 19775530, 39551060, 79102120]

約数ペア:

[(1, 79102120), (2, 39551060), (4, 19775530), (5, 15820424), (8, 9887765), (10, 7910212), (20, 3955106), (40, 1977553), (41, 1929320), (82, 964660), (139, 569080), (164, 482330), (205, 385864), (278, 284540), (328, 241165), (347, 227960), (410, 192932), (556, 142270), (694, 113980), (695, 113816), (820, 96466), (1112, 71135), (1388, 56990), (1390, 56908), (1640, 48233), (1735, 45592), (2776, 28495), (2780, 28454), (3470, 22796), (5560, 14227), (5699, 13880), (6940, 11398)]