31721830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:134

約数の個数: 128

約数和(自身を含む): 77137920

約数和(自身を除く): 45416090

約数列:

[1, 2, 5, 7, 10, 14, 17, 19, 23, 34, 35, 38, 46, 61, 70, 85, 95, 115, 119, 122, 133, 161, 170, 190, 230, 238, 266, 305, 322, 323, 391, 427, 437, 595, 610, 646, 665, 782, 805, 854, 874, 1037, 1159, 1190, 1330, 1403, 1610, 1615, 1955, 2074, 2135, 2185, 2261, 2318, 2737, 2806, 3059, 3230, 3910, 4270, 4370, 4522, 5185, 5474, 5795, 6118, 7015, 7259, 7429, 8113, 9821, 10370, 11305, 11590, 13685, 14030, 14518, 14858, 15295, 16226, 19642, 19703, 22610, 23851, 26657, 27370, 30590, 36295, 37145, 39406, 40565, 47702, 49105, 52003, 53314, 72590, 74290, 81130, 98210, 98515, 104006, 119255, 133285, 137921, 166957, 186599, 197030, 238510, 260015, 266570, 275842, 333914, 373198, 453169, 520030, 689605, 834785, 906338, 932995, 1379210, 1669570, 1865990, 2265845, 3172183, 4531690, 6344366, 15860915, 31721830]

約数ペア:

[(1, 31721830), (2, 15860915), (5, 6344366), (7, 4531690), (10, 3172183), (14, 2265845), (17, 1865990), (19, 1669570), (23, 1379210), (34, 932995), (35, 906338), (38, 834785), (46, 689605), (61, 520030), (70, 453169), (85, 373198), (95, 333914), (115, 275842), (119, 266570), (122, 260015), (133, 238510), (161, 197030), (170, 186599), (190, 166957), (230, 137921), (238, 133285), (266, 119255), (305, 104006), (322, 98515), (323, 98210), (391, 81130), (427, 74290), (437, 72590), (595, 53314), (610, 52003), (646, 49105), (665, 47702), (782, 40565), (805, 39406), (854, 37145), (874, 36295), (1037, 30590), (1159, 27370), (1190, 26657), (1330, 23851), (1403, 22610), (1610, 19703), (1615, 19642), (1955, 16226), (2074, 15295), (2135, 14858), (2185, 14518), (2261, 14030), (2318, 13685), (2737, 11590), (2806, 11305), (3059, 10370), (3230, 9821), (3910, 8113), (4270, 7429), (4370, 7259), (4522, 7015), (5185, 6118), (5474, 5795)]