21808960

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:264

約数の個数: 112

約数和(自身を含む): 58155840

約数和(自身を除く): 36346880

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 32, 34, 38, 40, 64, 68, 76, 80, 85, 95, 136, 152, 160, 170, 190, 211, 272, 304, 320, 323, 340, 380, 422, 544, 608, 646, 680, 760, 844, 1055, 1088, 1216, 1292, 1360, 1520, 1615, 1688, 2110, 2584, 2720, 3040, 3230, 3376, 3587, 4009, 4220, 5168, 5440, 6080, 6460, 6752, 7174, 8018, 8440, 10336, 12920, 13504, 14348, 16036, 16880, 17935, 20045, 20672, 25840, 28696, 32072, 33760, 35870, 40090, 51680, 57392, 64144, 67520, 68153, 71740, 80180, 103360, 114784, 128288, 136306, 143480, 160360, 229568, 256576, 272612, 286960, 320720, 340765, 545224, 573920, 641440, 681530, 1090448, 1147840, 1282880, 1363060, 2180896, 2726120, 4361792, 5452240, 10904480, 21808960]

約数ペア:

[(1, 21808960), (2, 10904480), (4, 5452240), (5, 4361792), (8, 2726120), (10, 2180896), (16, 1363060), (17, 1282880), (19, 1147840), (20, 1090448), (32, 681530), (34, 641440), (38, 573920), (40, 545224), (64, 340765), (68, 320720), (76, 286960), (80, 272612), (85, 256576), (95, 229568), (136, 160360), (152, 143480), (160, 136306), (170, 128288), (190, 114784), (211, 103360), (272, 80180), (304, 71740), (320, 68153), (323, 67520), (340, 64144), (380, 57392), (422, 51680), (544, 40090), (608, 35870), (646, 33760), (680, 32072), (760, 28696), (844, 25840), (1055, 20672), (1088, 20045), (1216, 17935), (1292, 16880), (1360, 16036), (1520, 14348), (1615, 13504), (1688, 12920), (2110, 10336), (2584, 8440), (2720, 8018), (3040, 7174), (3230, 6752), (3376, 6460), (3587, 6080), (4009, 5440), (4220, 5168)]