171999780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{157}}^1$

素因数の和:250

約数の個数: 144

約数和(自身を含む): 527163840

約数和(自身を除く): 355164060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 31, 38, 57, 60, 62, 76, 93, 95, 114, 124, 155, 157, 186, 190, 228, 285, 310, 314, 372, 380, 465, 471, 570, 589, 620, 628, 785, 930, 942, 961, 1140, 1178, 1570, 1767, 1860, 1884, 1922, 2355, 2356, 2883, 2945, 2983, 3140, 3534, 3844, 4710, 4805, 4867, 5766, 5890, 5966, 7068, 8835, 8949, 9420, 9610, 9734, 11532, 11780, 11932, 14415, 14601, 14915, 17670, 17898, 18259, 19220, 19468, 24335, 28830, 29202, 29830, 35340, 35796, 36518, 44745, 48670, 54777, 57660, 58404, 59660, 73005, 73036, 89490, 91295, 92473, 97340, 109554, 146010, 150877, 178980, 182590, 184946, 219108, 273885, 277419, 292020, 301754, 365180, 369892, 452631, 462365, 547770, 554838, 603508, 754385, 905262, 924730, 1095540, 1109676, 1387095, 1508770, 1810524, 1849460, 2263155, 2774190, 2866663, 3017540, 4526310, 5548380, 5733326, 8599989, 9052620, 11466652, 14333315, 17199978, 28666630, 34399956, 42999945, 57333260, 85999890, 171999780]

約数ペア:

[(1, 171999780), (2, 85999890), (3, 57333260), (4, 42999945), (5, 34399956), (6, 28666630), (10, 17199978), (12, 14333315), (15, 11466652), (19, 9052620), (20, 8599989), (30, 5733326), (31, 5548380), (38, 4526310), (57, 3017540), (60, 2866663), (62, 2774190), (76, 2263155), (93, 1849460), (95, 1810524), (114, 1508770), (124, 1387095), (155, 1109676), (157, 1095540), (186, 924730), (190, 905262), (228, 754385), (285, 603508), (310, 554838), (314, 547770), (372, 462365), (380, 452631), (465, 369892), (471, 365180), (570, 301754), (589, 292020), (620, 277419), (628, 273885), (785, 219108), (930, 184946), (942, 182590), (961, 178980), (1140, 150877), (1178, 146010), (1570, 109554), (1767, 97340), (1860, 92473), (1884, 91295), (1922, 89490), (2355, 73036), (2356, 73005), (2883, 59660), (2945, 58404), (2983, 57660), (3140, 54777), (3534, 48670), (3844, 44745), (4710, 36518), (4805, 35796), (4867, 35340), (5766, 29830), (5890, 29202), (5966, 28830), (7068, 24335), (8835, 19468), (8949, 19220), (9420, 18259), (9610, 17898), (9734, 17670), (11532, 14915), (11780, 14601), (11932, 14415)]