81979500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:137

約数の個数: 192

約数和(自身を含む): 258306048

約数和(自身を除く): 176326548

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 31, 41, 43, 50, 60, 62, 75, 82, 86, 93, 100, 123, 124, 125, 129, 150, 155, 164, 172, 186, 205, 215, 246, 250, 258, 300, 310, 372, 375, 410, 430, 465, 492, 500, 516, 615, 620, 645, 750, 775, 820, 860, 930, 1025, 1075, 1230, 1271, 1290, 1333, 1500, 1550, 1763, 1860, 2050, 2150, 2325, 2460, 2542, 2580, 2666, 3075, 3100, 3225, 3526, 3813, 3875, 3999, 4100, 4300, 4650, 5084, 5125, 5289, 5332, 5375, 6150, 6355, 6450, 6665, 7052, 7626, 7750, 7998, 8815, 9300, 10250, 10578, 10750, 11625, 12300, 12710, 12900, 13330, 15252, 15375, 15500, 15996, 16125, 17630, 19065, 19995, 20500, 21156, 21500, 23250, 25420, 26445, 26660, 30750, 31775, 32250, 33325, 35260, 38130, 39990, 44075, 46500, 52890, 54653, 61500, 63550, 64500, 66650, 76260, 79980, 88150, 95325, 99975, 105780, 109306, 127100, 132225, 133300, 158875, 163959, 166625, 176300, 190650, 199950, 218612, 220375, 264450, 273265, 317750, 327918, 333250, 381300, 399900, 440750, 476625, 499875, 528900, 546530, 635500, 655836, 661125, 666500, 819795, 881500, 953250, 999750, 1093060, 1322250, 1366325, 1639590, 1906500, 1999500, 2644500, 2732650, 3279180, 4098975, 5465300, 6831625, 8197950, 13663250, 16395900, 20494875, 27326500, 40989750, 81979500]

約数ペア:

[(1, 81979500), (2, 40989750), (3, 27326500), (4, 20494875), (5, 16395900), (6, 13663250), (10, 8197950), (12, 6831625), (15, 5465300), (20, 4098975), (25, 3279180), (30, 2732650), (31, 2644500), (41, 1999500), (43, 1906500), (50, 1639590), (60, 1366325), (62, 1322250), (75, 1093060), (82, 999750), (86, 953250), (93, 881500), (100, 819795), (123, 666500), (124, 661125), (125, 655836), (129, 635500), (150, 546530), (155, 528900), (164, 499875), (172, 476625), (186, 440750), (205, 399900), (215, 381300), (246, 333250), (250, 327918), (258, 317750), (300, 273265), (310, 264450), (372, 220375), (375, 218612), (410, 199950), (430, 190650), (465, 176300), (492, 166625), (500, 163959), (516, 158875), (615, 133300), (620, 132225), (645, 127100), (750, 109306), (775, 105780), (820, 99975), (860, 95325), (930, 88150), (1025, 79980), (1075, 76260), (1230, 66650), (1271, 64500), (1290, 63550), (1333, 61500), (1500, 54653), (1550, 52890), (1763, 46500), (1860, 44075), (2050, 39990), (2150, 38130), (2325, 35260), (2460, 33325), (2542, 32250), (2580, 31775), (2666, 30750), (3075, 26660), (3100, 26445), (3225, 25420), (3526, 23250), (3813, 21500), (3875, 21156), (3999, 20500), (4100, 19995), (4300, 19065), (4650, 17630), (5084, 16125), (5125, 15996), (5289, 15500), (5332, 15375), (5375, 15252), (6150, 13330), (6355, 12900), (6450, 12710), (6665, 12300), (7052, 11625), (7626, 10750), (7750, 10578), (7998, 10250), (8815, 9300)]