81131976

素因数分解:

$2^3\times 3^3\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{373}}^1$

素因数の和:460

約数の個数: 128

約数和(自身を含む): 242352000

約数和(自身を除く): 161220024

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 27, 36, 38, 53, 54, 57, 72, 76, 106, 108, 114, 152, 159, 171, 212, 216, 228, 318, 342, 373, 424, 456, 477, 513, 636, 684, 746, 954, 1007, 1026, 1119, 1272, 1368, 1431, 1492, 1908, 2014, 2052, 2238, 2862, 2984, 3021, 3357, 3816, 4028, 4104, 4476, 5724, 6042, 6714, 7087, 8056, 8952, 9063, 10071, 11448, 12084, 13428, 14174, 18126, 19769, 20142, 21261, 24168, 26856, 27189, 28348, 36252, 39538, 40284, 42522, 54378, 56696, 59307, 63783, 72504, 79076, 80568, 85044, 108756, 118614, 127566, 158152, 170088, 177921, 191349, 217512, 237228, 255132, 355842, 375611, 382698, 474456, 510264, 533763, 711684, 751222, 765396, 1067526, 1126833, 1423368, 1502444, 1530792, 2135052, 2253666, 3004888, 3380499, 4270104, 4507332, 6760998, 9014664, 10141497, 13521996, 20282994, 27043992, 40565988, 81131976]

約数ペア:

[(1, 81131976), (2, 40565988), (3, 27043992), (4, 20282994), (6, 13521996), (8, 10141497), (9, 9014664), (12, 6760998), (18, 4507332), (19, 4270104), (24, 3380499), (27, 3004888), (36, 2253666), (38, 2135052), (53, 1530792), (54, 1502444), (57, 1423368), (72, 1126833), (76, 1067526), (106, 765396), (108, 751222), (114, 711684), (152, 533763), (159, 510264), (171, 474456), (212, 382698), (216, 375611), (228, 355842), (318, 255132), (342, 237228), (373, 217512), (424, 191349), (456, 177921), (477, 170088), (513, 158152), (636, 127566), (684, 118614), (746, 108756), (954, 85044), (1007, 80568), (1026, 79076), (1119, 72504), (1272, 63783), (1368, 59307), (1431, 56696), (1492, 54378), (1908, 42522), (2014, 40284), (2052, 39538), (2238, 36252), (2862, 28348), (2984, 27189), (3021, 26856), (3357, 24168), (3816, 21261), (4028, 20142), (4104, 19769), (4476, 18126), (5724, 14174), (6042, 13428), (6714, 12084), (7087, 11448), (8056, 10071), (8952, 9063)]