81938250

素因数分解:

$2^1\times 3^3\times 5^3\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:286

約数の個数: 128

約数和(自身を含む): 232128000

約数和(自身を除く): 150189750

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 30, 45, 50, 54, 61, 75, 90, 122, 125, 135, 150, 183, 199, 225, 250, 270, 305, 366, 375, 398, 450, 549, 597, 610, 675, 750, 915, 995, 1098, 1125, 1194, 1350, 1525, 1647, 1791, 1830, 1990, 2250, 2745, 2985, 3050, 3294, 3375, 3582, 4575, 4975, 5373, 5490, 5970, 6750, 7625, 8235, 8955, 9150, 9950, 10746, 12139, 13725, 14925, 15250, 16470, 17910, 22875, 24278, 24875, 26865, 27450, 29850, 36417, 41175, 44775, 45750, 49750, 53730, 60695, 68625, 72834, 74625, 82350, 89550, 109251, 121390, 134325, 137250, 149250, 182085, 205875, 218502, 223875, 268650, 303475, 327753, 364170, 411750, 447750, 546255, 606950, 655506, 671625, 910425, 1092510, 1343250, 1517375, 1638765, 1820850, 2731275, 3034750, 3277530, 4552125, 5462550, 8193825, 9104250, 13656375, 16387650, 27312750, 40969125, 81938250]

約数ペア:

[(1, 81938250), (2, 40969125), (3, 27312750), (5, 16387650), (6, 13656375), (9, 9104250), (10, 8193825), (15, 5462550), (18, 4552125), (25, 3277530), (27, 3034750), (30, 2731275), (45, 1820850), (50, 1638765), (54, 1517375), (61, 1343250), (75, 1092510), (90, 910425), (122, 671625), (125, 655506), (135, 606950), (150, 546255), (183, 447750), (199, 411750), (225, 364170), (250, 327753), (270, 303475), (305, 268650), (366, 223875), (375, 218502), (398, 205875), (450, 182085), (549, 149250), (597, 137250), (610, 134325), (675, 121390), (750, 109251), (915, 89550), (995, 82350), (1098, 74625), (1125, 72834), (1194, 68625), (1350, 60695), (1525, 53730), (1647, 49750), (1791, 45750), (1830, 44775), (1990, 41175), (2250, 36417), (2745, 29850), (2985, 27450), (3050, 26865), (3294, 24875), (3375, 24278), (3582, 22875), (4575, 17910), (4975, 16470), (5373, 15250), (5490, 14925), (5970, 13725), (6750, 12139), (7625, 10746), (8235, 9950), (8955, 9150)]