61311800

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2$

素因数の和:118

約数の個数: 144

約数和(自身を含む): 166228200

約数和(自身を除く): 104916400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 29, 31, 40, 44, 50, 55, 58, 62, 88, 100, 110, 116, 124, 145, 155, 200, 220, 232, 248, 275, 290, 310, 319, 341, 440, 550, 580, 620, 638, 682, 725, 775, 899, 961, 1100, 1160, 1240, 1276, 1364, 1450, 1550, 1595, 1705, 1798, 1922, 2200, 2552, 2728, 2900, 3100, 3190, 3410, 3596, 3844, 4495, 4805, 5800, 6200, 6380, 6820, 7192, 7688, 7975, 8525, 8990, 9610, 9889, 10571, 12760, 13640, 15950, 17050, 17980, 19220, 19778, 21142, 22475, 24025, 27869, 31900, 34100, 35960, 38440, 39556, 42284, 44950, 48050, 49445, 52855, 55738, 63800, 68200, 79112, 84568, 89900, 96100, 98890, 105710, 111476, 139345, 179800, 192200, 197780, 211420, 222952, 247225, 264275, 278690, 306559, 395560, 422840, 494450, 528550, 557380, 613118, 696725, 988900, 1057100, 1114760, 1226236, 1393450, 1532795, 1977800, 2114200, 2452472, 2786900, 3065590, 5573800, 6131180, 7663975, 12262360, 15327950, 30655900, 61311800]

約数ペア:

[(1, 61311800), (2, 30655900), (4, 15327950), (5, 12262360), (8, 7663975), (10, 6131180), (11, 5573800), (20, 3065590), (22, 2786900), (25, 2452472), (29, 2114200), (31, 1977800), (40, 1532795), (44, 1393450), (50, 1226236), (55, 1114760), (58, 1057100), (62, 988900), (88, 696725), (100, 613118), (110, 557380), (116, 528550), (124, 494450), (145, 422840), (155, 395560), (200, 306559), (220, 278690), (232, 264275), (248, 247225), (275, 222952), (290, 211420), (310, 197780), (319, 192200), (341, 179800), (440, 139345), (550, 111476), (580, 105710), (620, 98890), (638, 96100), (682, 89900), (725, 84568), (775, 79112), (899, 68200), (961, 63800), (1100, 55738), (1160, 52855), (1240, 49445), (1276, 48050), (1364, 44950), (1450, 42284), (1550, 39556), (1595, 38440), (1705, 35960), (1798, 34100), (1922, 31900), (2200, 27869), (2552, 24025), (2728, 22475), (2900, 21142), (3100, 19778), (3190, 19220), (3410, 17980), (3596, 17050), (3844, 15950), (4495, 13640), (4805, 12760), (5800, 10571), (6200, 9889), (6380, 9610), (6820, 8990), (7192, 8525), (7688, 7975)]