127289968

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1039}}^1$

素因数の和:1110

約数の個数: 80

約数和(自身を含む): 288870400

約数和(自身を除く): 161580432

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 31, 38, 52, 62, 76, 104, 124, 152, 208, 247, 248, 304, 403, 494, 496, 589, 806, 988, 1039, 1178, 1612, 1976, 2078, 2356, 3224, 3952, 4156, 4712, 6448, 7657, 8312, 9424, 13507, 15314, 16624, 19741, 27014, 30628, 32209, 39482, 54028, 61256, 64418, 78964, 108056, 122512, 128836, 157928, 216112, 256633, 257672, 315856, 418717, 513266, 515344, 611971, 837434, 1026532, 1223942, 1674868, 2053064, 2447884, 3349736, 4106128, 4895768, 6699472, 7955623, 9791536, 15911246, 31822492, 63644984, 127289968]

約数ペア:

[(1, 127289968), (2, 63644984), (4, 31822492), (8, 15911246), (13, 9791536), (16, 7955623), (19, 6699472), (26, 4895768), (31, 4106128), (38, 3349736), (52, 2447884), (62, 2053064), (76, 1674868), (104, 1223942), (124, 1026532), (152, 837434), (208, 611971), (247, 515344), (248, 513266), (304, 418717), (403, 315856), (494, 257672), (496, 256633), (589, 216112), (806, 157928), (988, 128836), (1039, 122512), (1178, 108056), (1612, 78964), (1976, 64418), (2078, 61256), (2356, 54028), (3224, 39482), (3952, 32209), (4156, 30628), (4712, 27014), (6448, 19741), (7657, 16624), (8312, 15314), (9424, 13507)]