28418940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{463}}^1$

素因数の和:520

約数の個数: 144

約数和(自身を含む): 97284096

約数和(自身を除く): 68865156

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 31, 33, 36, 44, 45, 55, 60, 62, 66, 90, 93, 99, 110, 124, 132, 155, 165, 180, 186, 198, 220, 279, 310, 330, 341, 372, 396, 463, 465, 495, 558, 620, 660, 682, 926, 930, 990, 1023, 1116, 1364, 1389, 1395, 1705, 1852, 1860, 1980, 2046, 2315, 2778, 2790, 3069, 3410, 4092, 4167, 4630, 5093, 5115, 5556, 5580, 6138, 6820, 6945, 8334, 9260, 10186, 10230, 12276, 13890, 14353, 15279, 15345, 16668, 20372, 20460, 20835, 25465, 27780, 28706, 30558, 30690, 41670, 43059, 45837, 50930, 57412, 61116, 61380, 71765, 76395, 83340, 86118, 91674, 101860, 129177, 143530, 152790, 157883, 172236, 183348, 215295, 229185, 258354, 287060, 305580, 315766, 430590, 458370, 473649, 516708, 631532, 645885, 789415, 861180, 916740, 947298, 1291770, 1420947, 1578830, 1894596, 2368245, 2583540, 2841894, 3157660, 4736490, 5683788, 7104735, 9472980, 14209470, 28418940]

約数ペア:

[(1, 28418940), (2, 14209470), (3, 9472980), (4, 7104735), (5, 5683788), (6, 4736490), (9, 3157660), (10, 2841894), (11, 2583540), (12, 2368245), (15, 1894596), (18, 1578830), (20, 1420947), (22, 1291770), (30, 947298), (31, 916740), (33, 861180), (36, 789415), (44, 645885), (45, 631532), (55, 516708), (60, 473649), (62, 458370), (66, 430590), (90, 315766), (93, 305580), (99, 287060), (110, 258354), (124, 229185), (132, 215295), (155, 183348), (165, 172236), (180, 157883), (186, 152790), (198, 143530), (220, 129177), (279, 101860), (310, 91674), (330, 86118), (341, 83340), (372, 76395), (396, 71765), (463, 61380), (465, 61116), (495, 57412), (558, 50930), (620, 45837), (660, 43059), (682, 41670), (926, 30690), (930, 30558), (990, 28706), (1023, 27780), (1116, 25465), (1364, 20835), (1389, 20460), (1395, 20372), (1705, 16668), (1852, 15345), (1860, 15279), (1980, 14353), (2046, 13890), (2315, 12276), (2778, 10230), (2790, 10186), (3069, 9260), (3410, 8334), (4092, 6945), (4167, 6820), (4630, 6138), (5093, 5580), (5115, 5556)]