28371820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{683}}^1$

素因数の和:790

約数の個数: 48

約数和(自身を含む): 62512128

約数和(自身を除く): 34140308

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 67, 124, 134, 155, 268, 310, 335, 620, 670, 683, 1340, 1366, 2077, 2732, 3415, 4154, 6830, 8308, 10385, 13660, 20770, 21173, 41540, 42346, 45761, 84692, 91522, 105865, 183044, 211730, 228805, 423460, 457610, 915220, 1418591, 2837182, 5674364, 7092955, 14185910, 28371820]

約数ペア:

[(1, 28371820), (2, 14185910), (4, 7092955), (5, 5674364), (10, 2837182), (20, 1418591), (31, 915220), (62, 457610), (67, 423460), (124, 228805), (134, 211730), (155, 183044), (268, 105865), (310, 91522), (335, 84692), (620, 45761), (670, 42346), (683, 41540), (1340, 21173), (1366, 20770), (2077, 13660), (2732, 10385), (3415, 8308), (4154, 6830)]