81867960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{11969}}^1$

素因数の和:12005

約数の個数: 96

約数和(自身を含む): 280098000

約数和(自身を除く): 198230040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 38, 40, 45, 57, 60, 72, 76, 90, 95, 114, 120, 152, 171, 180, 190, 228, 285, 342, 360, 380, 456, 570, 684, 760, 855, 1140, 1368, 1710, 2280, 3420, 6840, 11969, 23938, 35907, 47876, 59845, 71814, 95752, 107721, 119690, 143628, 179535, 215442, 227411, 239380, 287256, 359070, 430884, 454822, 478760, 538605, 682233, 718140, 861768, 909644, 1077210, 1137055, 1364466, 1436280, 1819288, 2046699, 2154420, 2274110, 2728932, 3411165, 4093398, 4308840, 4548220, 5457864, 6822330, 8186796, 9096440, 10233495, 13644660, 16373592, 20466990, 27289320, 40933980, 81867960]

約数ペア:

[(1, 81867960), (2, 40933980), (3, 27289320), (4, 20466990), (5, 16373592), (6, 13644660), (8, 10233495), (9, 9096440), (10, 8186796), (12, 6822330), (15, 5457864), (18, 4548220), (19, 4308840), (20, 4093398), (24, 3411165), (30, 2728932), (36, 2274110), (38, 2154420), (40, 2046699), (45, 1819288), (57, 1436280), (60, 1364466), (72, 1137055), (76, 1077210), (90, 909644), (95, 861768), (114, 718140), (120, 682233), (152, 538605), (171, 478760), (180, 454822), (190, 430884), (228, 359070), (285, 287256), (342, 239380), (360, 227411), (380, 215442), (456, 179535), (570, 143628), (684, 119690), (760, 107721), (855, 95752), (1140, 71814), (1368, 59845), (1710, 47876), (2280, 35907), (3420, 23938), (6840, 11969)]