90900900

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:411

約数の個数: 144

約数和(自身を含む): 295606080

約数和(自身を除く): 204705180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 90, 100, 108, 131, 135, 150, 180, 225, 257, 262, 270, 300, 393, 450, 514, 524, 540, 655, 675, 771, 786, 900, 1028, 1179, 1285, 1310, 1350, 1542, 1572, 1965, 2313, 2358, 2570, 2620, 2700, 3084, 3275, 3537, 3855, 3930, 4626, 4716, 5140, 5895, 6425, 6550, 6939, 7074, 7710, 7860, 9252, 9825, 11565, 11790, 12850, 13100, 13878, 14148, 15420, 17685, 19275, 19650, 23130, 23580, 25700, 27756, 29475, 33667, 34695, 35370, 38550, 39300, 46260, 57825, 58950, 67334, 69390, 70740, 77100, 88425, 101001, 115650, 117900, 134668, 138780, 168335, 173475, 176850, 202002, 231300, 303003, 336670, 346950, 353700, 404004, 505005, 606006, 673340, 693900, 841675, 909009, 1010010, 1212012, 1515015, 1683350, 1818018, 2020020, 2525025, 3030030, 3366700, 3636036, 4545045, 5050050, 6060060, 7575075, 9090090, 10100100, 15150150, 18180180, 22725225, 30300300, 45450450, 90900900]

約数ペア:

[(1, 90900900), (2, 45450450), (3, 30300300), (4, 22725225), (5, 18180180), (6, 15150150), (9, 10100100), (10, 9090090), (12, 7575075), (15, 6060060), (18, 5050050), (20, 4545045), (25, 3636036), (27, 3366700), (30, 3030030), (36, 2525025), (45, 2020020), (50, 1818018), (54, 1683350), (60, 1515015), (75, 1212012), (90, 1010010), (100, 909009), (108, 841675), (131, 693900), (135, 673340), (150, 606006), (180, 505005), (225, 404004), (257, 353700), (262, 346950), (270, 336670), (300, 303003), (393, 231300), (450, 202002), (514, 176850), (524, 173475), (540, 168335), (655, 138780), (675, 134668), (771, 117900), (786, 115650), (900, 101001), (1028, 88425), (1179, 77100), (1285, 70740), (1310, 69390), (1350, 67334), (1542, 58950), (1572, 57825), (1965, 46260), (2313, 39300), (2358, 38550), (2570, 35370), (2620, 34695), (2700, 33667), (3084, 29475), (3275, 27756), (3537, 25700), (3855, 23580), (3930, 23130), (4626, 19650), (4716, 19275), (5140, 17685), (5895, 15420), (6425, 14148), (6550, 13878), (6939, 13100), (7074, 12850), (7710, 11790), (7860, 11565), (9252, 9825)]