31209808

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:236

約数の個数: 80

約数和(自身を含む): 72852480

約数和(自身を除く): 41642672

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 89, 101, 112, 124, 178, 202, 217, 248, 356, 404, 434, 496, 623, 707, 712, 808, 868, 1246, 1414, 1424, 1616, 1736, 2492, 2759, 2828, 3131, 3472, 4984, 5518, 5656, 6262, 8989, 9968, 11036, 11312, 12524, 17978, 19313, 21917, 22072, 25048, 35956, 38626, 43834, 44144, 50096, 62923, 71912, 77252, 87668, 125846, 143824, 154504, 175336, 251692, 278659, 309008, 350672, 503384, 557318, 1006768, 1114636, 1950613, 2229272, 3901226, 4458544, 7802452, 15604904, 31209808]

約数ペア:

[(1, 31209808), (2, 15604904), (4, 7802452), (7, 4458544), (8, 3901226), (14, 2229272), (16, 1950613), (28, 1114636), (31, 1006768), (56, 557318), (62, 503384), (89, 350672), (101, 309008), (112, 278659), (124, 251692), (178, 175336), (202, 154504), (217, 143824), (248, 125846), (356, 87668), (404, 77252), (434, 71912), (496, 62923), (623, 50096), (707, 44144), (712, 43834), (808, 38626), (868, 35956), (1246, 25048), (1414, 22072), (1424, 21917), (1616, 19313), (1736, 17978), (2492, 12524), (2759, 11312), (2828, 11036), (3131, 9968), (3472, 8989), (4984, 6262), (5518, 5656)]