31812872

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{491}}^1$

素因数の和:606

約数の個数: 64

約数和(自身を含む): 74390400

約数和(自身を除く): 42577528

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 89, 91, 104, 178, 182, 356, 364, 491, 623, 712, 728, 982, 1157, 1246, 1964, 2314, 2492, 3437, 3928, 4628, 4984, 6383, 6874, 8099, 9256, 12766, 13748, 16198, 25532, 27496, 32396, 43699, 44681, 51064, 64792, 87398, 89362, 174796, 178724, 305893, 349592, 357448, 568087, 611786, 1136174, 1223572, 2272348, 2447144, 3976609, 4544696, 7953218, 15906436, 31812872]

約数ペア:

[(1, 31812872), (2, 15906436), (4, 7953218), (7, 4544696), (8, 3976609), (13, 2447144), (14, 2272348), (26, 1223572), (28, 1136174), (52, 611786), (56, 568087), (89, 357448), (91, 349592), (104, 305893), (178, 178724), (182, 174796), (356, 89362), (364, 87398), (491, 64792), (623, 51064), (712, 44681), (728, 43699), (982, 32396), (1157, 27496), (1246, 25532), (1964, 16198), (2314, 13748), (2492, 12766), (3437, 9256), (3928, 8099), (4628, 6874), (4984, 6383)]