81969192

素因数分解:

$2^3\times 3^3\times {\mathrm{19}}^1\times {\mathrm{19973}}^1$

素因数の和:20007

約数の個数: 64

約数和(自身を含む): 239688000

約数和(自身を除く): 157718808

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 27, 36, 38, 54, 57, 72, 76, 108, 114, 152, 171, 216, 228, 342, 456, 513, 684, 1026, 1368, 2052, 4104, 19973, 39946, 59919, 79892, 119838, 159784, 179757, 239676, 359514, 379487, 479352, 539271, 719028, 758974, 1078542, 1138461, 1438056, 1517948, 2157084, 2276922, 3035896, 3415383, 4314168, 4553844, 6830766, 9107688, 10246149, 13661532, 20492298, 27323064, 40984596, 81969192]

約数ペア:

[(1, 81969192), (2, 40984596), (3, 27323064), (4, 20492298), (6, 13661532), (8, 10246149), (9, 9107688), (12, 6830766), (18, 4553844), (19, 4314168), (24, 3415383), (27, 3035896), (36, 2276922), (38, 2157084), (54, 1517948), (57, 1438056), (72, 1138461), (76, 1078542), (108, 758974), (114, 719028), (152, 539271), (171, 479352), (216, 379487), (228, 359514), (342, 239676), (456, 179757), (513, 159784), (684, 119838), (1026, 79892), (1368, 59919), (2052, 39946), (4104, 19973)]