81812100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{463}}^1$

素因数の和:530

約数の個数: 144

約数和(自身を含む): 257761280

約数和(自身を除く): 175949180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 25, 30, 31, 38, 50, 57, 60, 62, 75, 76, 93, 95, 100, 114, 124, 150, 155, 186, 190, 228, 285, 300, 310, 372, 380, 463, 465, 475, 570, 589, 620, 775, 926, 930, 950, 1140, 1178, 1389, 1425, 1550, 1767, 1852, 1860, 1900, 2315, 2325, 2356, 2778, 2850, 2945, 3100, 3534, 4630, 4650, 5556, 5700, 5890, 6945, 7068, 8797, 8835, 9260, 9300, 11575, 11780, 13890, 14353, 14725, 17594, 17670, 23150, 26391, 27780, 28706, 29450, 34725, 35188, 35340, 43059, 43985, 44175, 46300, 52782, 57412, 58900, 69450, 71765, 86118, 87970, 88350, 105564, 131955, 138900, 143530, 172236, 175940, 176700, 215295, 219925, 263910, 272707, 287060, 358825, 430590, 439850, 527820, 545414, 659775, 717650, 818121, 861180, 879700, 1076475, 1090828, 1319550, 1363535, 1435300, 1636242, 2152950, 2639100, 2727070, 3272484, 4090605, 4305900, 5454140, 6817675, 8181210, 13635350, 16362420, 20453025, 27270700, 40906050, 81812100]

約数ペア:

[(1, 81812100), (2, 40906050), (3, 27270700), (4, 20453025), (5, 16362420), (6, 13635350), (10, 8181210), (12, 6817675), (15, 5454140), (19, 4305900), (20, 4090605), (25, 3272484), (30, 2727070), (31, 2639100), (38, 2152950), (50, 1636242), (57, 1435300), (60, 1363535), (62, 1319550), (75, 1090828), (76, 1076475), (93, 879700), (95, 861180), (100, 818121), (114, 717650), (124, 659775), (150, 545414), (155, 527820), (186, 439850), (190, 430590), (228, 358825), (285, 287060), (300, 272707), (310, 263910), (372, 219925), (380, 215295), (463, 176700), (465, 175940), (475, 172236), (570, 143530), (589, 138900), (620, 131955), (775, 105564), (926, 88350), (930, 87970), (950, 86118), (1140, 71765), (1178, 69450), (1389, 58900), (1425, 57412), (1550, 52782), (1767, 46300), (1852, 44175), (1860, 43985), (1900, 43059), (2315, 35340), (2325, 35188), (2356, 34725), (2778, 29450), (2850, 28706), (2945, 27780), (3100, 26391), (3534, 23150), (4630, 17670), (4650, 17594), (5556, 14725), (5700, 14353), (5890, 13890), (6945, 11780), (7068, 11575), (8797, 9300), (8835, 9260)]