20217240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{631}}^1$

素因数の和:737

約数の個数: 96

約数和(自身を含む): 66549600

約数和(自身を除く): 46332360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 89, 90, 120, 178, 180, 267, 356, 360, 445, 534, 631, 712, 801, 890, 1068, 1262, 1335, 1602, 1780, 1893, 2136, 2524, 2670, 3155, 3204, 3560, 3786, 4005, 5048, 5340, 5679, 6310, 6408, 7572, 8010, 9465, 10680, 11358, 12620, 15144, 16020, 18930, 22716, 25240, 28395, 32040, 37860, 45432, 56159, 56790, 75720, 112318, 113580, 168477, 224636, 227160, 280795, 336954, 449272, 505431, 561590, 673908, 842385, 1010862, 1123180, 1347816, 1684770, 2021724, 2246360, 2527155, 3369540, 4043448, 5054310, 6739080, 10108620, 20217240]

約数ペア:

[(1, 20217240), (2, 10108620), (3, 6739080), (4, 5054310), (5, 4043448), (6, 3369540), (8, 2527155), (9, 2246360), (10, 2021724), (12, 1684770), (15, 1347816), (18, 1123180), (20, 1010862), (24, 842385), (30, 673908), (36, 561590), (40, 505431), (45, 449272), (60, 336954), (72, 280795), (89, 227160), (90, 224636), (120, 168477), (178, 113580), (180, 112318), (267, 75720), (356, 56790), (360, 56159), (445, 45432), (534, 37860), (631, 32040), (712, 28395), (801, 25240), (890, 22716), (1068, 18930), (1262, 16020), (1335, 15144), (1602, 12620), (1780, 11358), (1893, 10680), (2136, 9465), (2524, 8010), (2670, 7572), (3155, 6408), (3204, 6310), (3560, 5679), (3786, 5340), (4005, 5048)]