64636240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{389}}^1$

素因数の和:500

約数の個数: 80

約数和(自身を含む): 157847040

約数和(自身を除く): 93210800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 67, 80, 124, 134, 155, 248, 268, 310, 335, 389, 496, 536, 620, 670, 778, 1072, 1240, 1340, 1556, 1945, 2077, 2480, 2680, 3112, 3890, 4154, 5360, 6224, 7780, 8308, 10385, 12059, 15560, 16616, 20770, 24118, 26063, 31120, 33232, 41540, 48236, 52126, 60295, 83080, 96472, 104252, 120590, 130315, 166160, 192944, 208504, 241180, 260630, 417008, 482360, 521260, 807953, 964720, 1042520, 1615906, 2085040, 3231812, 4039765, 6463624, 8079530, 12927248, 16159060, 32318120, 64636240]

約数ペア:

[(1, 64636240), (2, 32318120), (4, 16159060), (5, 12927248), (8, 8079530), (10, 6463624), (16, 4039765), (20, 3231812), (31, 2085040), (40, 1615906), (62, 1042520), (67, 964720), (80, 807953), (124, 521260), (134, 482360), (155, 417008), (248, 260630), (268, 241180), (310, 208504), (335, 192944), (389, 166160), (496, 130315), (536, 120590), (620, 104252), (670, 96472), (778, 83080), (1072, 60295), (1240, 52126), (1340, 48236), (1556, 41540), (1945, 33232), (2077, 31120), (2480, 26063), (2680, 24118), (3112, 20770), (3890, 16616), (4154, 15560), (5360, 12059), (6224, 10385), (7780, 8308)]