25197420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2$

素因数の和:116

約数の個数: 144

約数和(自身を含む): 80075520

約数和(自身を除く): 54878100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 23, 30, 31, 38, 46, 57, 60, 62, 69, 76, 92, 93, 95, 114, 115, 124, 138, 155, 186, 190, 228, 230, 276, 285, 310, 345, 372, 380, 437, 460, 465, 570, 589, 620, 690, 713, 874, 930, 961, 1140, 1178, 1311, 1380, 1426, 1748, 1767, 1860, 1922, 2139, 2185, 2356, 2622, 2852, 2883, 2945, 3534, 3565, 3844, 4278, 4370, 4805, 5244, 5766, 5890, 6555, 7068, 7130, 8556, 8740, 8835, 9610, 10695, 11532, 11780, 13110, 13547, 14260, 14415, 17670, 18259, 19220, 21390, 22103, 26220, 27094, 28830, 35340, 36518, 40641, 42780, 44206, 54188, 54777, 57660, 66309, 67735, 73036, 81282, 88412, 91295, 109554, 110515, 132618, 135470, 162564, 182590, 203205, 219108, 221030, 265236, 270940, 273885, 331545, 365180, 406410, 419957, 442060, 547770, 663090, 812820, 839914, 1095540, 1259871, 1326180, 1679828, 2099785, 2519742, 4199570, 5039484, 6299355, 8399140, 12598710, 25197420]

約数ペア:

[(1, 25197420), (2, 12598710), (3, 8399140), (4, 6299355), (5, 5039484), (6, 4199570), (10, 2519742), (12, 2099785), (15, 1679828), (19, 1326180), (20, 1259871), (23, 1095540), (30, 839914), (31, 812820), (38, 663090), (46, 547770), (57, 442060), (60, 419957), (62, 406410), (69, 365180), (76, 331545), (92, 273885), (93, 270940), (95, 265236), (114, 221030), (115, 219108), (124, 203205), (138, 182590), (155, 162564), (186, 135470), (190, 132618), (228, 110515), (230, 109554), (276, 91295), (285, 88412), (310, 81282), (345, 73036), (372, 67735), (380, 66309), (437, 57660), (460, 54777), (465, 54188), (570, 44206), (589, 42780), (620, 40641), (690, 36518), (713, 35340), (874, 28830), (930, 27094), (961, 26220), (1140, 22103), (1178, 21390), (1311, 19220), (1380, 18259), (1426, 17670), (1748, 14415), (1767, 14260), (1860, 13547), (1922, 13110), (2139, 11780), (2185, 11532), (2356, 10695), (2622, 9610), (2852, 8835), (2883, 8740), (2945, 8556), (3534, 7130), (3565, 7068), (3844, 6555), (4278, 5890), (4370, 5766), (4805, 5244)]