20945184

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^2\times {\mathrm{1291}}^1$

素因数の和:1330

約数の個数: 72

約数和(自身を含む): 59581872

約数和(自身を除く): 38636688

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 78, 96, 104, 156, 169, 208, 312, 338, 416, 507, 624, 676, 1014, 1248, 1291, 1352, 2028, 2582, 2704, 3873, 4056, 5164, 5408, 7746, 8112, 10328, 15492, 16224, 16783, 20656, 30984, 33566, 41312, 50349, 61968, 67132, 100698, 123936, 134264, 201396, 218179, 268528, 402792, 436358, 537056, 654537, 805584, 872716, 1309074, 1611168, 1745432, 2618148, 3490864, 5236296, 6981728, 10472592, 20945184]

約数ペア:

[(1, 20945184), (2, 10472592), (3, 6981728), (4, 5236296), (6, 3490864), (8, 2618148), (12, 1745432), (13, 1611168), (16, 1309074), (24, 872716), (26, 805584), (32, 654537), (39, 537056), (48, 436358), (52, 402792), (78, 268528), (96, 218179), (104, 201396), (156, 134264), (169, 123936), (208, 100698), (312, 67132), (338, 61968), (416, 50349), (507, 41312), (624, 33566), (676, 30984), (1014, 20656), (1248, 16783), (1291, 16224), (1352, 15492), (2028, 10328), (2582, 8112), (2704, 7746), (3873, 5408), (4056, 5164)]