20150100

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{439}}^1$

素因数の和:479

約数の個数: 144

約数和(自身を含む): 68745600

約数和(自身を除く): 48595500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 25, 27, 30, 34, 36, 45, 50, 51, 54, 60, 68, 75, 85, 90, 100, 102, 108, 135, 150, 153, 170, 180, 204, 225, 255, 270, 300, 306, 340, 425, 439, 450, 459, 510, 540, 612, 675, 765, 850, 878, 900, 918, 1020, 1275, 1317, 1350, 1530, 1700, 1756, 1836, 2195, 2295, 2550, 2634, 2700, 3060, 3825, 3951, 4390, 4590, 5100, 5268, 6585, 7463, 7650, 7902, 8780, 9180, 10975, 11475, 11853, 13170, 14926, 15300, 15804, 19755, 21950, 22389, 22950, 23706, 26340, 29852, 32925, 37315, 39510, 43900, 44778, 45900, 47412, 59265, 65850, 67167, 74630, 79020, 89556, 98775, 111945, 118530, 131700, 134334, 149260, 186575, 197550, 201501, 223890, 237060, 268668, 296325, 335835, 373150, 395100, 403002, 447780, 559725, 592650, 671670, 746300, 806004, 1007505, 1119450, 1185300, 1343340, 1679175, 2015010, 2238900, 3358350, 4030020, 5037525, 6716700, 10075050, 20150100]

約数ペア:

[(1, 20150100), (2, 10075050), (3, 6716700), (4, 5037525), (5, 4030020), (6, 3358350), (9, 2238900), (10, 2015010), (12, 1679175), (15, 1343340), (17, 1185300), (18, 1119450), (20, 1007505), (25, 806004), (27, 746300), (30, 671670), (34, 592650), (36, 559725), (45, 447780), (50, 403002), (51, 395100), (54, 373150), (60, 335835), (68, 296325), (75, 268668), (85, 237060), (90, 223890), (100, 201501), (102, 197550), (108, 186575), (135, 149260), (150, 134334), (153, 131700), (170, 118530), (180, 111945), (204, 98775), (225, 89556), (255, 79020), (270, 74630), (300, 67167), (306, 65850), (340, 59265), (425, 47412), (439, 45900), (450, 44778), (459, 43900), (510, 39510), (540, 37315), (612, 32925), (675, 29852), (765, 26340), (850, 23706), (878, 22950), (900, 22389), (918, 21950), (1020, 19755), (1275, 15804), (1317, 15300), (1350, 14926), (1530, 13170), (1700, 11853), (1756, 11475), (1836, 10975), (2195, 9180), (2295, 8780), (2550, 7902), (2634, 7650), (2700, 7463), (3060, 6585), (3825, 5268), (3951, 5100), (4390, 4590)]