81339900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{389}}^1$

素因数の和:464

約数の個数: 144

約数和(自身を含む): 255921120

約数和(自身を除く): 174581220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 25, 30, 34, 41, 50, 51, 60, 68, 75, 82, 85, 100, 102, 123, 150, 164, 170, 204, 205, 246, 255, 300, 340, 389, 410, 425, 492, 510, 615, 697, 778, 820, 850, 1020, 1025, 1167, 1230, 1275, 1394, 1556, 1700, 1945, 2050, 2091, 2334, 2460, 2550, 2788, 3075, 3485, 3890, 4100, 4182, 4668, 5100, 5835, 6150, 6613, 6970, 7780, 8364, 9725, 10455, 11670, 12300, 13226, 13940, 15949, 17425, 19450, 19839, 20910, 23340, 26452, 29175, 31898, 33065, 34850, 38900, 39678, 41820, 47847, 52275, 58350, 63796, 66130, 69700, 79356, 79745, 95694, 99195, 104550, 116700, 132260, 159490, 165325, 191388, 198390, 209100, 239235, 271133, 318980, 330650, 396780, 398725, 478470, 495975, 542266, 661300, 797450, 813399, 956940, 991950, 1084532, 1196175, 1355665, 1594900, 1626798, 1983900, 2392350, 2711330, 3253596, 4066995, 4784700, 5422660, 6778325, 8133990, 13556650, 16267980, 20334975, 27113300, 40669950, 81339900]

約数ペア:

[(1, 81339900), (2, 40669950), (3, 27113300), (4, 20334975), (5, 16267980), (6, 13556650), (10, 8133990), (12, 6778325), (15, 5422660), (17, 4784700), (20, 4066995), (25, 3253596), (30, 2711330), (34, 2392350), (41, 1983900), (50, 1626798), (51, 1594900), (60, 1355665), (68, 1196175), (75, 1084532), (82, 991950), (85, 956940), (100, 813399), (102, 797450), (123, 661300), (150, 542266), (164, 495975), (170, 478470), (204, 398725), (205, 396780), (246, 330650), (255, 318980), (300, 271133), (340, 239235), (389, 209100), (410, 198390), (425, 191388), (492, 165325), (510, 159490), (615, 132260), (697, 116700), (778, 104550), (820, 99195), (850, 95694), (1020, 79745), (1025, 79356), (1167, 69700), (1230, 66130), (1275, 63796), (1394, 58350), (1556, 52275), (1700, 47847), (1945, 41820), (2050, 39678), (2091, 38900), (2334, 34850), (2460, 33065), (2550, 31898), (2788, 29175), (3075, 26452), (3485, 23340), (3890, 20910), (4100, 19839), (4182, 19450), (4668, 17425), (5100, 15949), (5835, 13940), (6150, 13226), (6613, 12300), (6970, 11670), (7780, 10455), (8364, 9725)]