28129400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{349}}^1$

素因数の和:409

約数の個数: 96

約数和(自身を含む): 72912000

約数和(自身を除く): 44782600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 31, 40, 50, 52, 62, 65, 100, 104, 124, 130, 155, 200, 248, 260, 310, 325, 349, 403, 520, 620, 650, 698, 775, 806, 1240, 1300, 1396, 1550, 1612, 1745, 2015, 2600, 2792, 3100, 3224, 3490, 4030, 4537, 6200, 6980, 8060, 8725, 9074, 10075, 10819, 13960, 16120, 17450, 18148, 20150, 21638, 22685, 34900, 36296, 40300, 43276, 45370, 54095, 69800, 80600, 86552, 90740, 108190, 113425, 140647, 181480, 216380, 226850, 270475, 281294, 432760, 453700, 540950, 562588, 703235, 907400, 1081900, 1125176, 1406470, 2163800, 2812940, 3516175, 5625880, 7032350, 14064700, 28129400]

約数ペア:

[(1, 28129400), (2, 14064700), (4, 7032350), (5, 5625880), (8, 3516175), (10, 2812940), (13, 2163800), (20, 1406470), (25, 1125176), (26, 1081900), (31, 907400), (40, 703235), (50, 562588), (52, 540950), (62, 453700), (65, 432760), (100, 281294), (104, 270475), (124, 226850), (130, 216380), (155, 181480), (200, 140647), (248, 113425), (260, 108190), (310, 90740), (325, 86552), (349, 80600), (403, 69800), (520, 54095), (620, 45370), (650, 43276), (698, 40300), (775, 36296), (806, 34900), (1240, 22685), (1300, 21638), (1396, 20150), (1550, 18148), (1612, 17450), (1745, 16120), (2015, 13960), (2600, 10819), (2792, 10075), (3100, 9074), (3224, 8725), (3490, 8060), (4030, 6980), (4537, 6200)]